SITEMAP *  HOME PAGE * SEARCH * UK KS3 level Science Quizzes for students aged ~13-14

UK GCSE level BiologyChemistryPhysics age ~14-16 * Advanced Level Chemistry age ~16-18

School Biology notes: Cell specialisation 3. Specialised plant cells

Cell specialisation: 3. The function of some specialised plant cells

Doc Brown's GCSE level Biology exam study revision notes

There are various sections to work through, after 1 they can be read and studied in any order.

Sub-index for notes on stem cells, cell differentiation and cell specialisation


(3) Specialised plant cells

 

Root hair cells - are adapted to absorb water and minerals from soil and then through the root system to transport these minerals around the plant. Root hair cells are long and cover the surface of plant roots to create a large surface area to absorb water and minerals.

Xylem cells - are not living cells, but rod-like cells that form hollow tubes that can move water and dissolved minerals from the roots around the plant.

Phloem cells - phloem vessels (columns of living cells) move dissolved sugars, produced during photosynthesis, and other soluble food molecules from the leaves to growing tissues (e.g. the tips of roots and shoots) and storage tissues (e.g. in the roots).

Palisade leaf cells - their structure is adapted to support the sites of photosynthesis.

Their tall and thin shape allows lots of light to be absorbed and have a large surface area for absorbing carbon dioxide. Palisade cells contain lots of chloroplasts, subcellular structures that contain the chlorophyll needed for photosynthesis and the shape allows lots of them to be packed together on the top side of a leaf for maximum exposure to light - essential for photosynthesis.  See diagram below.

Guard leaf cells - can open and close the pores (stomata) in leaves and allow oxygen and carbon dioxide to pass in and out.  See diagram above.

For more details on plant cell evolutionary adaptations see

Transport and gas exchange in plants, transpiration, absorption of nutrients, leaf & root structure

and Photosynthesis, importance explained, limiting factors affecting rate, leaf adaptations


Summary of learning objectives and key words or phrases

Be able to describe the structure and function of specialised plant cells and their evolutionary adaptations.


WHAT NEXT?

TOP OF PAGE

Index for biology notes on stem cells, cell differentiation and cell specialisation

Big website and use [SEARCH BOX] below, maybe quicker than the indexes

INDEX of all my BIOLOGY NOTES

HOME PAGE of Doc Brown's Science website

UK KS3 Science Quizzes for KS3 science students aged ~11-14, ~US grades 6, 7 and 8

BiologyChemistryPhysics UK GCSE level students aged ~14-16, ~US grades 9-10

Advanced Level Chemistry for pre-university age ~16-18 ~US grades 11-12, K12 Honors

Find your GCSE/IGCSE science course for more help links to all science revision notes

email doc brown - comments - query?

Use your mobile phone or ipad etc. in 'landscape' mode?


Doc Brown's school biology revision notes: GCSE biology, IGCSE  biology, O level biology,  ~US biology science grade 8, grade 9 and grade 10 school science courses or equivalent for ~14-16 year old students of biology IGCSE AQA GCSE Biology Edexcel GCSE Biology IGCSE OCR Gateway Science Biology OCR 21st Century Science Biology  Some of these biology revision notes might be suitable for UK KS3 Science-Biology courses for ages 12-14 (~US biology science grades 6, grade 7 and grade 8)

SITEMAP Website content Dr Phil Brown 2000+. All copyrights reserved on Doc Brown's biology revision notes, images, quizzes, worksheets etc. Copying of website material is NOT permitted. Exam revision summaries and references to science course specifications are unofficial.

Using SEARCH some initial results may be ad links you can ignore - look for docbrown

TOP OF PAGE