GCE AQA BIOL - Plant Cells
Unit 3.2 The variety of living organisms
3.2.4 The variety of life is extensive and this is reflected in similarities and differences in its biochemical basis and cellular organisation.CellsThere are fundamental differences between plant cells and animal cells.The structure of a palisade cell from a leaf as seen with an optical microscope. The appearance, ultrastructure and function of cell wall and chloroplasts. Candidates should be able to apply their knowledge of these and other eukaryotic features in explaining adaptations of other plant cells.
Plants 🌿 and animals 🐶differ both macroscopically and in terms of the individual cells that make them up. In GCE AQA Biology, you should be able to remember these cellular differences summarised in the following table:
There are individual organelles particular to plant cells that are very interesting 🌵. As a student of GCE AQA Biology, you will be expected to know the appearance, ultrastructure and function of the cell wall and chloroplasts.
Cell wall Appearance
Chloroplasts are meant to absorb sunlight and use it to carry out photosynthesis. The chloroplast is adapted to do so:
The following diagram summarises the organelles in a plant cell, specifically a palisade leaf cell:
Plant cells are adapted to their specific functions ☘️. For example, a palisade leaf cell will have lots of chloroplasts, as the leaves are exposed to sunlight and can thus photosynthesise, whereas a root cell will not have chloroplasts, as the roots are deep underground, away from sunlight, and thus will not photosynthesise.
That's it for this section!
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Written by Justine | Biology Specialist @ Tuttee
ReferencesToole, G., & Toole, S. (2015). Aqa biology A level. Oxford: Oxford University Press.Images from
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