© Doc Brown's KS3 Biology Quiz 9B "Fitness, health, skeleton and muscles" click [?] (re-edit 10/03/2023)

Which word best matches the phrase ...
a substance that slows down the brain and makes you feel sleepy or more relaxed? [9b-1]
1. sedative
2. stimulant
3. hallucinogen
4. analgesic
5. vaccine
6. antibiotic
7. antiseptic
Which word best matches the phrase ...
a substance that speeds up your brain and makes you more active? [9b-2]
1. sedative
2. stimulant
3. hallucinogen
4. analgesic
5. vaccine
6. antibiotic
7. antiseptic
Which word best matches the phrase ...
a substance that gives you powerful experiences that are not 'real' and you lack control? [9b-3]
1. sedative
2. stimulant
3. hallucinogen
4. analgesic
5. vaccine
6. antibiotic
7. antiseptic
Which word best matches the phrase ...
a substance that reduces the feelings of pain? [9b-4]
1. sedative
2. stimulant
3. hallucinogen
4. analgesic
5. vaccine
6. antibiotic
7. antiseptic
Which word best matches the phrase ...
a substance that immunises you against certain infectious diseases? [9b-5]
1. sedative
2. stimulant
3. hallucinogen
4. analgesic
5. vaccine
6. antibiotic
7. antiseptic
Which word best matches the phrase ...
a substance that a chemical taken internally to kill bacteria infections? [9b-6]
1. sedative
2. stimulant
3. hallucinogen
4. analgesic
5. vaccine
6. antibiotic
7. antiseptic
Which word best matches the phrase ...
a substance that that can be applied externally to the skin to kill bacteria? [9b-7]
1. sedative
2. stimulant
3. hallucinogen
4. analgesic
5. vaccine
6. antibiotic
7. antiseptic
Which of the following includes the lungs? [9b-8]
1. respiratory system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system
Which of the following includes the small intestine? [9b-9]
1. respiratory system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system
Which of the following includes the heart? [9b-10]
1. respiratory system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system
Which of the following includes a woman's ovaries? [9b-11]
1. respiratory system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system
Which of the following includes the femur? [9b-12]
1. respiratory system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system
Which chemical is missing from the respiration equation ...

__?__ + oxygen ==> water + carbon dioxide [9b-13]
1. glucose
2. starch
3. hydrogen
4. methane
Which chemical is missing from the respiration equation ...

glucose + __?__ ==> water + carbon dioxide [9b-14]
1. hydrogen peroxide
2. oxygen
3. hydroxide
4. oxide
chemical is missing from the respiration equation ...

glucose + oxygen ==> __?__ + carbon dioxide [9b-15]
1. hydrogen peroxide
2. carbon monoxide
3. water
4. starch
Which chemical is missing from the respiration equation ...

glucose + oxygen ==> water + __?__ [9b-16]
1. carbon monoxide
2. carbon
3. hydrogen peroxide
4. carbon dioxide
Given the respiration equation ....
glucose + oxygen ==> water + carbon dioxide

Which of the following is absorbed in the small intestine? [9b-17]
1. glucose
2. oxygen
3. water
4. carbon dioxide
Given the respiration equation ....
glucose + oxygen ==> water + carbon dioxide

Which of the following is absorbed in the lungs? [9b-18]
1. glucose
2. oxygen
3. water
4. carbon dioxide
Given the respiration equation ....
glucose + oxygen ==> water + carbon dioxide

Which of the following causes condensation of breath on cold windows? [9b-19]
1. glucose
2. oxygen
3. water
4. carbon dioxide
Given the respiration equation ....
glucose + oxygen ==> water + carbon dioxide

Which of the following turns limewater 'milky' when you blow through it with a straw? [9b-20]
1. glucose
2. oxygen
3. water
4. carbon dioxide
Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-21]
1. to raise your arm the biceps contract and the triceps contract
2. to lower or straighten your arm the biceps relax and the triceps contract
3. calcium in the diet is essential for healthy bone structure
4. protein in the diet is essential for healthy muscle structure
5. cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage
6. cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear
Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-22]
1. to raise your arm the biceps contract and the triceps relax
2. to lower or straighten your arm the biceps contract and the triceps contract
3. calcium in the diet is essential for healthy bone structure
4. protein in the diet is essential for healthy muscle structure
5. cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage
6. cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear
Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-23]
1. to raise your arm the biceps contract and the triceps relax
2. to lower or straighten your arm the biceps relax and the triceps contract
3. sodium in the diet is essential for healthy bone structure
4. protein in the diet is essential for healthy muscle structure
5. cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage
6. cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear
Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-24]
1. to raise your arm the biceps contract and the triceps relax
2. to lower or straighten your arm the biceps relax and the triceps contract
3. calcium in the diet is essential for healthy bone structure
4. vegetable fibre in the diet is essential for healthy muscle structure
5. cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage
6. cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear
Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-25]
1. to raise your arm the biceps contract and the triceps relax
2. to lower or straighten your arm the biceps relax and the triceps contract
3. calcium in the diet is essential for healthy bone structure
4. protein in the diet is essential for healthy muscle structure
5. cartilage is a harder material between the bones of a joint and acts as a binding agent to minimise the chance of fracture damage
6. cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear
Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-26]
1. to raise your arm the biceps contract and the triceps relax
2. to lower or straighten your arm the biceps relax and the triceps contract
3. calcium in the diet is essential for healthy bone structure
4. protein in the diet is essential for healthy muscle structure
5. cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage
6. cartilage is a harder material between the bones of a joint and increases friction to reduce pain and wear
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best completes the phrase your arm is acting as a __?__ to lift an object? [9b-27]
1. lever
2. pivot or fulcrum
3. moment
4. newton
5. force
6. newton metre
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the point where the humerus and ulna bones are linked? [9b-28]
1. lever
2. pivot or fulcrum
3. moment
4. newton
5. force
6. newton metre
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the weight of a lifted object x the length of your arm? [9b-29]
1. lever
2. a pivot or fulcrum
3. moment
4. newton
5. force
6. newton metre
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the unit of any weight you lift? [9b-30]
1. lever
2. pivot or fulcrum
3. moment
4. newton
5. force
6. newton metre
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase produced by any push or pull of your arm? [9b-31]
1. lever
2. pivot or fulcrum
3. moment
4. newton
5. force
6. newton metre
The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the units of the effect of a turning force? (e.g. as you bend your arm to lift something) [9b-32]
1. lever
2. pivot or fulcrum
3. moment
4. newton
5. force
6. newton metre
Which of the following is NOT true about drinking alcoholic beverages? [9b-33]
1. a little alcohol can cause serious liver damage
2. harmful alcohol can reach an unborn baby through the placenta
3. alcoholic drinks tend to slow down your reactions
4. alcohol is rapidly absorbed into your bloodstream from the stomach
Which of the following is NOT true about drinking alcoholic beverages? [9b-34]
1. too much alcohol can cause serious liver damage
2. alcohol cannot reach an unborn baby through the placenta
3. alcoholic drinks tend to slow down your reactions
4. alcohol is rapidly absorbed into your bloodstream from the stomach
Which of the following is NOT true about drinking alcoholic beverages? [9b-35]
1. too much alcohol can cause serious liver damage
2. harmful alcohol can reach an unborn baby through the placenta
3. alcoholic drinks tend to speed up your reactions
4. alcohol is rapidly absorbed into your bloodstream from the stomach
Which of the following is NOT true about drinking alcoholic beverages? [9b-36]
1. too much alcohol can cause serious liver damage
2. harmful alcohol can reach an unborn baby through the placenta
3. alcoholic drinks tend to slow down your reactions
4. alcohol is only slowly absorbed into your bloodstream from the stomach
Which of the following is NOT true about smoking? [9b-37]
1. nicotine is not an addictive substance in tobacco tar or smoke
2. breathing in other smokers smoke can be harmful
3. smokers have harmful carbon monoxide in their bloodstream
4. tobacco tar and smoke both contain carcinogens
Which of the following is NOT true about smoking? [9b-38]
1. nicotine is an addictive substance in tobacco tar or smoke
2. breathing in other smokers smoke is not particularly harmful
3. smokers have harmful carbon monoxide in their bloodstream
4. tobacco tar and smoke both contain carcinogens
Which of the following is NOT true about smoking? [9b-39]
1. nicotine is an addictive substance in tobacco tar or smoke
2. breathing in other smokers smoke can be harmful
3. smokers have extra harmful carbon dioxide in their bloodstream
4. tobacco tar and smoke both contain carcinogens
Which of the following is NOT true about smoking? [9b-40]
1. nicotine is an addictive substance in tobacco tar or smoke
2. breathing in other smokers smoke can be harmful
3. smokers have harmful carbon monoxide in their bloodstream
4. only tobacco tar. and not smoke, contain carcinogens
Which of the following changes is most likely to make snack foods like crisps less nutritious? [9b-41]
1. more fat
2. less carbohydrate
3. more protein
4. less salt
5. more flavouring
Which of the following changes is most likely to make snack foods like crisps give you more energy? [9b-42]
1. less fat
2. more carbohydrate
3. more protein
4. less salt
5. more flavouring
Which of the following changes is most likely to make snack foods like crisps less nutritious? [9b-43]
1. less fat
2. less carbohydrate
3. less protein
4. less salt
5. more flavouring
Which of the following changes is most likely to make snack foods like crisps less nutritious? [9b-44]
1. less fat
2. less carbohydrate
3. more protein
4. more salt
5. more flavouring
Which of the following changes is most likely to make snack foods like crisps less nutritious? [9b-45]
1. less fat
2. less carbohydrate
3. more protein
4. less salt
5. more flavouring
The graph shows the pulse rate of Mark and Tony after completing a 20 minute training jog together. Mark and Tony are about the same weight and both ran the same distance.

Which statement is most likely to be TRUE? [9b-46]
1. Tony can run at a faster speed than Mark.
2. Tony is not as fit as Mark.
3. in a race Mark is more likely to win.
4. Tony is more likely than Mark, to become breathless sooner, in a short sprint.
The graph shows the pulse rate of Mark and Tony after completing a 20 minute training jog together. Mark and Tony are about the same weight and both ran the same distance.

Which statement is most likely to be TRUE? [9b-47]
1. Mark can run at a faster speed than Tony.
2. Tony is fitter than Mark.
3. in a race Mark is more likely to win.
4. Tony is more likely than Mark, to become breathless sooner, in a short sprint.
The graph shows the pulse rate of Mark and Tony after completing a 20 minute training jog together. Mark and Tony are about the same weight and both ran the same distance.

Which statement is most likely to be TRUE? [9b-48]
1. Mark can run at a faster speed than Tony.
2. Tony is not as fit as Mark.
3. in a race Tony is more likely to win.
4. Tony is more likely than Mark, to become breathless sooner, in a short sprint.
The graph shows the pulse rate of Mark and Tony after completing a 20 minute training jog together. Mark and Tony are about the same weight and both ran the same distance.

Which statement is most likely to be TRUE? [9b-49]
1. Mark can run at a faster speed than Tony.
2. Tony is not as fit as Mark.
3. in a race Mark is more likely to win.
4. Tony is less likely than Mark, to become breathless sooner, in a short sprint.
Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-50]
1. heart disease is increasing due to our richer and more fatty diet
2. diabetes is increasing because we eat more protein in the form of meat
3. cases of measles have decreased mainly due to better living conditions
4. tuberculosis (TB) has increased due to more people smoking
5. lung cancer is increasing because of increased air pollution
Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-51]
1. heart disease is decreasing due to our more nutritious diet
2. diabetes is increasing because of our richer and more fatty diet
3. cases of measles have decreased mainly due to better living conditions
4. tuberculosis (TB) has increased due to more people smoking
5. lung cancer is increasing because of increased air pollution
Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-52]
1. heart disease is decreasing due to our more nutritious diet
2. diabetes is increasing because we eat more protein in the form of meat
3. cases of measles have decreased mainly due to immunisation by vaccination
4. tuberculosis (TB) has increased due to more people smoking
5. lung cancer is increasing because of increased air pollution
Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-53]
1. heart disease is decreasing due to our more nutritious diet
2. diabetes is increasing because we eat more protein in the form of meat
3. cases of measles have decreased mainly due to better living conditions
4. tuberculosis (TB) has decreased due to better living conditions and vaccination
5. lung cancer is increasing because of increased air pollution
Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-54]
1. heart disease is decreasing due to our more nutritious diet
2. diabetes is increasing because we eat more protein in the form of meat
3. cases of measles have decreased mainly due to better living conditions
4. tuberculosis (TB) has increased due to more people smoking
5. lung cancer is increasing because more people who can afford to smoke, do smoke
In smoking, which causes cancer? [9b-55]
1. tar
2. carbon monoxide
3. nicotine
4. filter paper
In smoking, which reduces the oxygen in red blood cells? [9b-56]
1. tar
2. carbon monoxide
3. nicotine
4. filter paper
In smoking, which substance is addictive? [9b-57]
1. tar
2. carbon monoxide
3. nicotine
4. filter paper
In smoking, which reduces the amount of harmful substances in the lung? [9b-58]
1. tar
2. carbon monoxide
3. nicotine
4. filter paper
The health and function of which system(s) is generally, and most likely improved by not smoking? [9b-59]
1. respiratory system and circulatory system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system and respiratory system
The health and function of which system(s) is generally, and most likely improved by eating vegetables? [9b-60]
1. respiratory system
2. digestive system
3. circulatory system and respiratory system
4. reproductive system
5. skeletal system and circulatory system
The health and function of which system(s) is generally, and most likely improved by reducing fatty foods in a diet? [9b-61]
1. muscle system and skeletal system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system
The health and function of which system(s) is generally, and most likely improved by fertility treatment? [9b-62]
1. respiratory system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system
The health and function of which system(s) is generally, and most likely improved by a diet containing adequate calcium? [9b-63]
1. respiratory system
2. digestive system
3. circulatory system
4. reproductive system
5. skeletal system
The health and function of which system(s) is generally, and most likely improved by regular exercise? [9b-64]
1. respiratory system and circulatory system
2. digestive system
3. circulatory system and skeletal system
4. reproductive system
5. skeletal system
Which of the following can be caused by too much fat in the diet? [9b-65]
1. excess weight, deposits in arteries, raised blood pressure
2. constipation, poor skin quality
3. rickets - 'bow legged'
4. 'skinny' and 'pot bellied'
Which of the following can be caused by too little fruit and vegetables in the diet? [9b-66]
1. excess weight, deposits in arteries, raised blood pressure
2. constipation, poor skin quality
3. increased blood pressure
4. 'skinny' and 'pot bellied'
Which of the following can be caused by too much salt in the diet? [9b-67]
1. excess weight, deposits in arteries
2. constipation, poor skin quality
3. increased blood pressure
4. 'skinny' and 'pot bellied'
Which of the following can be caused by too little protein in the diet? [9b-68]
1. excess weight, deposits in arteries, raised blood pressure
2. constipation, poor skin quality
3. increased blood pressure
4. 'skinny' and 'pot bellied'
[9b-69] Which of the following is caused by eating too much carbohydrate or fat in a diet?
1. malnutrition
2. obesity
3. scurvy
4. anaemia
[9b-70] Which of the following is caused by a poor diet lacking in important nutrients and resulting in general ill health?
1. malnutrition
2. obesity
3. scurvy
4. anaemia
[9b-71] Which of the following is caused by a lack of vitamin C in a diet?
1. malnutrition
2. obesity
3. scurvy
4. anaemia
[9b-72] Which of the following is prevented by citrus fruits in a diet?
1. malnutrition
2. obesity
3. scurvy
4. anaemia
[9b-73] Which of the following is prevented by iron in a diet from meat and vegetables?
1. malnutrition
2. obesity
3. scurvy
4. anaemia
[9b-74] Which of the following is caused by a lack of iron in the diet?
1. malnutrition
2. obesity
3. scurvy
4. anaemia
[9b-75] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. The rib bones protect the stomach.
2. Some bones contain in the middle, soft tissue called bone marrow where red blood cells to carry oxygen are made.
3. Tendon tissues attach the muscles to the bones.
4. Antagonistic muscles operate in pairs and work against each other.
[9b-76] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. The rib bones protect the heart and lungs.
2. Some bones contain in the middle, soft tissue called bone marrow where nerve cells are made.
3. Tendon tissues attach the muscles to the bones.
4. Antagonistic muscles operate in pairs and work against each other.
[9b-77] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. The rib bones protect the heart and lungs.
2. Some bones contain in the middle, soft tissue called bone marrow where red blood cells to carry oxygen are made.
3. Cartilage tissues attach the muscles to the bones.
4. Antagonistic muscles operate in pairs and work against each other.
[9b-78] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. The rib bones protect the heart and lungs.
2. Some bones contain in the middle, soft tissue called bone marrow where red blood cells to carry oxygen are made.
3. Tendon tissues attach the muscles to the bones.
4. Antagonistic muscles operate in pairs and work in parallel with each other.
[9b-79] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. The outer layers of bone are soft and the inner structure is strong and rigid.
2. The skeleton provides a rigid structure for the rest of the soft tissues of the body to bond to.
3. Some bones contain in the middle, soft tissue called bone marrow where white blood cells to fight infection are made.
4. When a muscle contracts it applies a force to a bone and allows the skeleton to change shape.
[9b-80] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. The outer layers of bone are hard and strong and the inner tissue is soft and spongy.
2. The skeleton bones are flexible to allow muscles to contract and relax changing shape.
3. Some bones contain in the middle, soft tissue called bone marrow where white blood cells to fight infection are made.
4. When a muscle contracts it applies a force to a bone and allows the skeleton to change shape.
[9b-81] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. The outer layers of bone are hard and strong and the inner tissue is soft and spongy.
2. The skeleton provides a rigid structure for the rest of the soft tissues of the body to bond to.
3. Some bones contain in the middle, soft tissue called bone marrow where nerve cells are made.
4. When a muscle contracts it applies a force to a bone and allows the skeleton to change shape.
[9b-82] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. The outer layers of bone are hard and strong and the inner tissue is soft and spongy.
2. The skeleton provides a rigid structure for the rest of the soft tissues of the body to bond to.
3. Some bones contain in the middle, soft tissue called bone marrow where white blood cells to fight infection are made.
4. When a muscle contracts it applies a force to a bone changing its shape to allows the skeleton to change shape and create movement.
[9b-83] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. Joints are held together by cartilage.
2. The end of each bone is covered in a smooth cartilage surface to cushion the joints against excessive wear and tear.
3. A joint is surrounded by fluid to lubricate the joint and ease movement.
4. To raise your arm, the bicep muscles contract and the tricep muscles relax.
[9b-84] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. Joints are held together by ligaments.
2. The end of each bone is covered in a smooth tendon surface to cushion the joints against excessive wear and tear.
3. A joint is surrounded by fluid to lubricate the joint and ease movement.
4. To raise your arm, the bicep muscles contract and the tricep muscles relax.
[9b-85] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. Joints are held together by ligaments.
2. The end of each bone is covered in a smooth cartilage surface to cushion the joints against excessive wear and tear.
3. A joint is surrounded by soft tissue to lubricate the joint and ease movement.
4. To raise your arm, the bicep muscles contract and the tricep muscles relax.
[9b-86] Which of the following is NOT correct about the bone and muscle systems of the human body?
1. Joints are held together by ligaments.
2. The end of each bone is covered in a smooth cartilage surface to cushion the joints against excessive wear and tear.
3. A joint is surrounded by fluid to lubricate the joint and ease movement.
4. To raise your arm, the bicep muscles relax and the tricep muscles contract.
[9b-87] If d1 = 0.40 m, d2 = 5 cm, using the above diagram for help, and applying the principle of moments, calculate the minimum force needed by the biceps contraction to lift a weight of 20 N.
1. 16 N
2. 25 N
3. 160 N
4. 2.5 N
[9b-88] If d1 = 0.36 m, d2 = 0.06 m, using the above diagram for help, and applying the principle of moments, calculate the minimum force needed by the biceps contraction to lift a weight of 30 N.
1. 18 N
2. 60 N
3. 180 N
4. 6 N
[9b-89] If d1 = 45 cm, d2 = 5 cm, using the above diagram for help, and applying the principle of moments, calculate the minimum force needed by the biceps contraction to lift a weight of 15 N.
1. 9 N
2. 3 N
3. 135 N
4. 45 N
[9b-90] If d1 = 48 cm, d2 = 6 cm, using the above diagram for help, and applying the principle of moments, calculate the minimum force needed by the biceps contraction to lift a weight of 20 N.
1. 24 N
2. 3 N
3. 160 N
4. 80 N
[9b-91] If d1 = 0.50 m, d2 = 0.05 m, using the above diagram for help, and applying the principle of moments, if the maximum strength of a person's biceps muscle contraction creates a force of 150 N, calculate the maximum weight the person's arm can raise.
1. 80 N
2. 32 N
3. 10 N
4. 15 N
[9b-92] If d1 = 0.60 m, d2 = 0.06 m, using the above diagram for help, and applying the principle of moments, if the maximum strength of a person's biceps muscle contraction creates a force of 180 N, calculate the maximum weight the person's arm can raise.
1. 80 N
2. 36 N
3. 10 N
4. 18 N
[9b-93] If d1 = 0.50 m, d2 = 0.05 m, using the above diagram for help, and applying the principle of moments, if the maximum strength of a person's biceps muscle contraction creates a force of 200 N, calculate the maximum weight the person's arm can raise.
1. 40 N
2. 30 N
3. 10 N
4. 20 N
[9b-94] If d1 = 0.40 m, d2 = 0.06 m, using the above diagram for help, and applying the principle of moments, if the maximum strength of a person's biceps muscle contraction creates a force of 240 N, calculate the maximum weight the person's arm can raise.
1. 40 N
2. 60 N
3. 15 N
4. 36 N
[8b-56] Which of the following statements is partly or wholly incorrect about the lungs and breathing?
1. When breathing in, the ribs move down as the diaphragm flattens and moves up.
2. When breathing in, as the diaphragm moves down, the volume inside the lungs increases, the pressure is reduced and fresh air moves in.
3. When breathing out, the ribs move down and in and the diaphragm moves up.
4. When breathing out, as the diaphragm moves up, the volume inside the lung decreases, pressure increases and waste air is expelled.
[8b-57] Which of the following statements is partly or wholly incorrect about the lungs and breathing?
1. When breathing in, the ribs move up and out as the diaphragm flattens and moves down.
2. When breathing in, as the diaphragm moves up, the volume inside the lungs increases, the pressure is increased and fresh air moves in.
3. When breathing out, the ribs move down and in and the diaphragm moves up.
4. When breathing out, as the diaphragm moves up, the volume inside the lung decreases, pressure increases and waste air is expelled.
[8b-58] Which of the following statements is partly or wholly incorrect about the lungs and breathing?
1. When breathing in, the ribs move up and out as the diaphragm flattens and moves down.
2. When breathing in, as the diaphragm moves down, the volume inside the lungs increases, the pressure is reduced and fresh air moves in.
3. When breathing out, the ribs move up and in and the diaphragm moves down.
4. When breathing out, as the diaphragm moves up, the volume inside the lung decreases, pressure increases and waste air is expelled.
[8b-59] Which of the following statements is partly or wholly incorrect about the lungs and breathing?
1. When breathing in, the ribs move up and out as the diaphragm flattens and moves down.
2. When breathing in, as the diaphragm moves down, the volume inside the lungs increases, the pressure is reduced and fresh air moves in.
3. When breathing out, the ribs move down and in and the diaphragm moves up.
4. When breathing out, as the diaphragm moves down, the volume inside the lung decreases, pressure decreases and waste air is expelled.
[8b-60] Which of the following statements is incorrect about alveoli in the lungs?
1. They are very tiny blood vessels in the bronchus.
2. They have a moist surface to aid gas exchange.
3. They have a very good blood supply from fine capillaries.
4. They have a very large surface area for efficient exchange of gases.
[8b-61] Which of the following statements is incorrect about alveoli in the lungs?
1. They are very tiny air sacs with thin walls to allow a short diffusion time.
2. They have a dry surface to adsorb gases.
3. They have a very good blood supply from fine capillaries.
4. They have a very large surface area for efficient exchange of gases.
[8b-62] Which of the following statements is incorrect about alveoli in the lungs?
1. They are very tiny air sacs with thin walls to allow a short diffusion time.
2. They have a moist surface to aid gas exchange.
3. They have a limited blood supply from a few capillaries.
4. They have a very large surface area for efficient exchange of gases.
[8b-63] Which of the following statements is incorrect about alveoli in the lungs?
1. They are very tiny air sacs with thin walls to allow a short diffusion time.
2. They have a moist surface to aid gas exchange.
3. They have a very good blood supply from fine capillaries.
4. They have a very small volume for efficient exchange of gases.
[8b-64] Which of the following statements is incorrect about respiration and exercise?
1. Breathing rate increases when you exercise because your lungs increase in size.
2. Blood flow increases when you exercise because your muscles need more glucose for respiration.
3. Regular exercise increases the strength of the diaphragm and intercostal muscles.
4. Regular exercise increases the number and size of capillaries around the alveoli in the lungs.
[8b-65] Which of the following statements is incorrect about respiration and exercise?
1. Breathing rate increases when you exercise because your muscles need more oxygen.
2. Blood flow increases when you exercise because your stomach needs more glucose for respiration.
3. Regular exercise increases the strength of the diaphragm and intercostal muscles.
4. Regular exercise increases the number and size of capillaries around the alveoli in the lungs.
[8b-66] Which of the following statements is incorrect about respiration and exercise?
1. Breathing rate increases when you exercise because your muscles need more oxygen.
2. Blood flow increases when you exercise because your muscles need more glucose for respiration.
3. Regular exercise increases the strength of all the muscles of the body.
4. Regular exercise increases the number and size of capillaries around the alveoli in the lungs.
[8b-64] Which of the following statements is incorrect about respiration and exercise?
1. Breathing rate increases when you exercise because your muscles need more oxygen.
2. Blood flow increases when you exercise because your muscles need more glucose for respiration.
3. Regular exercise increases the strength of the diaphragm and intercostal muscles.
4. Regular exercise decreases the size of the capillaries around the alveoli in the lungs.
[8b-68] Which of the following statements is incorrect about the medical condition called asthma?
1. The stomach is too sensitive to certain things such as pollen, dust particles or pet hairs.
2. When an asthmatic breathes in certain things, the muscles around the bronchioles contract narrowing the airways.
3. The lining of airways in the lungs become inflamed and mucous fluids build up restricting breathing.
4. The build up of fluid in the bronchioles makes it harder to breath, causing coughing, breathlessness and faster heartbeat.
[8b-69] Which of the following statements is incorrect about the medical condition called asthma?
1. The lungs are too sensitive to certain things such as pollen, dust particles or pet hairs.
2. When an asthmatic digests certain things, the muscles around the bronchioles contract narrowing the airways.
3. The lining of airways in the lungs become inflamed and mucous fluids build up restricting breathing.
4. The build up of fluid in the bronchioles makes it harder to breath, causing coughing, breathlessness and faster heartbeat.
[8b-70] Which of the following statements is incorrect about the medical condition called asthma?
1. The lungs are too sensitive to certain things such as pollen, dust particles or pet hairs.
2. When an asthmatic breathes in certain things, the muscles around the bronchioles contract narrowing the airways.
3. The lining of airways in the lungs expand and allowing more mucous fluid to flow into them.
4. The build up of fluid in the bronchioles makes it harder to breath, causing coughing, breathlessness and faster heartbeat.
[8b-71] Which of the following statements is incorrect about the medical condition called asthma?
1. The lungs are too sensitive to certain things such as pollen, dust particles or pet hairs.
2. When an asthmatic breathes in certain things, the muscles around the bronchioles contract narrowing the airways.
3. The lining of airways in the lungs become inflamed and mucous fluids build up restricting breathing.
4. The build up of fluid in the throat makes it harder to breath, causing coughing, breathlessness and faster heartbeat.
[8b-72] Which of the following statements is incorrect about smoking?
1. The smoke contains nicotine and tar but not carbon monoxide or particulates.
2. Smoking damages the cilia cells of the bronchus lining which inhibits their ability to get rid of mucous.
3. Smoking causes a build up of mucous in the lungs and throat causing coughing.
4. The bronchioles of the lungs become inflamed and damaged causing emphysema.
5. The smoke contains carcinogens that can lead to cancer of the lungs, throat or mouth.
[8b-73] Which of the following statements is incorrect about smoking?
1. The smoke contains carbon monoxide, nicotine, tar and particulates.
2. Smoking damages the cilia cells of the mouth which inhibits its ability to get rid of mucous.
3. Smoking causes a build up of mucous in the lungs and throat causing coughing.
4. The bronchioles of the lungs become inflamed and damaged causing emphysema.
5. The smoke contains carcinogens that can lead to cancer of the lungs, throat or mouth.
[8b-74] Which of the following statements is incorrect about smoking?
1. The smoke contains carbon monoxide, nicotine, tar and particulates.
2. Smoking damages the cilia cells of the bronchus lining which inhibits their ability to get rid of mucous.
3. Smoking causes a build up of mucous in the mouth causing coughing.
4. The bronchioles of the lungs become inflamed and damaged causing emphysema.
5. The smoke contains carcinogens that can lead to cancer of the lungs, throat or mouth.
[8b-75] Which of the following statements is incorrect about smoking?
1. The smoke contains carbon monoxide, nicotine, tar and particulates.
2. Smoking damages the cilia cells of the bronchus lining which inhibits their ability to get rid of mucous.
3. Smoking causes a build up of mucous in the lungs and throat causing coughing.
4. The bronchioles of the lungs become enlarged and causing emphysema.
5. The smoke contains carcinogens that can lead to cancer of the lungs, throat or mouth.
[8b-76] Which of the following statements is incorrect about smoking?
1. The smoke contains carbon monoxide, nicotine, tar and particulates.
2. Smoking damages the cilia cells of the bronchus lining which inhibits their ability to get rid of mucous.
3. Smoking causes a build up of mucous in the lungs and throat causing coughing.
4. The bronchioles of the lungs become inflamed and damaged causing emphysema.
5. The smoke contains carcinogens that can lead to cancer of the lungs, but no other tissues can become cancerous.
[8b-77] Which of the following is incorrect about the human circulatory system?
1. Blood transports waste oxygen from respiration to the lungs and other waste products to the intestine.
2. Blood transports oxygen and all nutrients to all the cells of the body including glucose for respiration.
3. The heart pumps oxygenated blood from the lungs to all the cells of the body.
4. The heart pumps deoxygenated blood to the lungs from all the cells of the body.
[8b-76] Which of the following is incorrect about the human circulatory system?
1. Blood transports waste carbon dioxide from respiration to the lungs and other waste products to the kidney.
2. Blood transports selected nutrients to the cells of the body including glucose from respiration.
3. The heart pumps oxygenated blood from the lungs to all the cells of the body.
4. The heart pumps deoxygenated blood to the lungs from all the cells of the body.
[8b-79] Which of the following is incorrect about the human circulatory system?
1. Blood transports waste carbon dioxide from respiration to the lungs and other waste products to the kidney.
2. Blood transports oxygen and all nutrients to all the cells of the body including glucose for respiration.
3. The heart pumps oxygenated blood to the lungs and all the cells of the body.
4. The heart pumps deoxygenated blood to the lungs from all the cells of the body.
[8b-80] Which of the following is incorrect about the human circulatory system?
1. Blood transports waste carbon dioxide from respiration to the lungs and other waste products to the kidney.
2. Blood transports oxygen and all nutrients to all the cells of the body including glucose for respiration.
3. The heart pumps oxygenated blood from the lungs to all the cells of the body.
4. The heart pumps oxygenated blood to the lungs from all the cells of the body.
[8b-81] Which of the following corresponds to the bronchi?
1. Two tubes carrying air to the lungs.
2. Small tubes in the lung.
3. Small air sacs found at the end of each bronchiole.
4. Carries air from the mouth and nose to the lungs.
5. A sheet of muscle found underneath the lungs.
[8b-82] Which of the following corresponds to the bronchioles?
1. Two tubes carrying air to the lungs.
2. Small tubes in the lung.
3. Small air sacs found at the end of each bronchiole.
4. Carries air from the mouth and nose to the lungs.
5. A sheet of muscle found underneath the lungs.
[8b-83] Which of the following corresponds to the alveoli?
1. Two tubes carrying air to the lungs.
2. Small tubes in the lung.
3. Small air sacs found at the end of each bronchiole.
4. Carries air from the mouth and nose to the lungs.
5. A sheet of muscle found underneath the lungs.
[8b-84] Which of the following corresponds to the trachea?
1. Two tubes carrying air to the lungs.
2. Small tubes in the lung.
3. Small air sacs found at the end of each bronchiole.
4. Carries air from the mouth and nose to the lungs.
5. A sheet of muscle found underneath the lungs.
[8b-85] Which of the following corresponds to the diaphragm?
1. Two tubes carrying air to the lungs.
2. Small tubes in the lung.
3. Small air sacs found at the end of each bronchiole.
4. Carries air from the mouth and nose to the lungs.
5. A sheet of muscle found underneath the lungs.

KS3 Biology Quiz: Fitness, health, skeleton and muscles