ANIMAL AND PLANT CELLS

ANIMAL AND PLANT CELLS 'S FUNCTION / STRUCTURE. CHEMICAL REACTIONS IN CELLS

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  • Created by: sopi
  • Created on: 26-04-11 19:45

animal cells

ANIMAL CELLS- structure and function

nucleus : controls the cell's activities. contains instruction for making new organism.

cytoplasm: a liquid gel where many chemical reactions for life take place.e.g.respiration

cell membrane : controls the passage of substances in and out of the cell

mitochondria: where energy is released during aerobic respiration.

ribosomes: where proteins are synthesised (made). all the proteins needed in the cell are made here

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plant cells

PLANTS CELLS - structure and function

* they make their own food by photosynthesis

* all plants cells have a cell wall made of cellulose which strenghtens the cell and gives it support

* not all the plant cells have:

- chloroplasts = found in green parts of plant called chlorophyll

-permanent vacuole = space in the cytoplasm filled with cells sap. it is important to keep the cells rigid to support the  plant.

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chemical reactions in cells

cell chemistry works because all the reactions are controlled by enzyme (biological catalysts).

enzyme controls the reaction of :

- respiration = found in mitochondria

- photosynthesis = found in chloroplasts

- protein synthesis = found on the surface of ribosomes.

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Comments

sopi

I HOPE THIS HELPS ;)

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