(8) Some basic examples of specialised cells and their features you need to be able to recognise

Cell type and function

Cell 1: A ciliated cell - the hairs can move material e.g. throat tissue cells move mucous along.

Cell 2: A plant cell - unlike animal cells, they have a cell wall as well as a membrane, plus chloroplasts for photosynthesis.

Cell 3: A red blood cell - contains the haemoglobin molecule that combines with oxygen, transported for respiration.

Cell 4: A female egg cell (ovum) - carrier of the female derived genes, lots of mitochondria.

Cell 5: A male sperm cell - carrier of the male derived genes

Cell 6: A plant root hair cell - by which plants absorb water and nutrients (e.g. mineral ions from the soil)

Cell features

L: Mitochondria, that power the cell chemistry from aerobic respiration.

N: The green chloroplasts, large organelles containing chlorophyll to catalyse photosynthesis.

O: The cilia are flexible hair-like structures

P: The cell wall of plants cells.

R: The cell membrane that controls what enters and exits the cells.

T: Vacuole

W: The cell nucleus that controls most of the cells activities.

Z: The cell cytoplasm

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Summary of learning objectives and key words or phrases

Know how to draw-sketch and describe the main features of some specialised cells and their features you need to be able to recognise.

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