Biology Revision

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PLANT AND ANIMAL CELLS -

- Animals and plants are formed from cells.

- they have some parts in common.

generalised animal cell -

cell membrame - controls what enters/leaves the cell (ie - oxygen,glucose,carbon dioxide)

nucleus - a structure that contains genes that control the activities of the cell.

cytoplasm - jelly like substance that fills the cell (loads of reactions happen here)

mitochondria - tiny structures respiration takes place. releasing energy for the cell processes.

ribosomes - (present in cytoplasm but not visible due to size). where the proteins are made.

A GENERALISED PLANT CELL HAS ALL OF THESE PLUSS A CELL WALL, CENTRAL VACUOLE AND CHLOROPLASTS.

EXAMPLE QUESTION &

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