Cell Structure and Organisation
- Created by: kpaul325
- Created on: 20-02-18 08:03
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- Cell Structure and Organization
- Animal cells.
- -Nucleus-contains genetic material that controls the activities of the cells.-Cytoplasm- a gel like substance where most of the chemical reactions with the help of enzymes.-Cell membrane-holds the cell together and controls what goes in and out of the cell. It is located around the cell.-Mitochondria-these are where most of the reactions for respiration take place. Respiration releases energy that the cell needs to work.-Ribosomes- these are where proteins are made in the cell.
- Plant cells.
- -Rigid cell wall-This is made of a substance called cellulose. It supports the cell and strengthens it.-Chloroplasts- These are where photosynthesis occurs which makes food for the plant. They contain a green substance called chlorophyll.-Permanent vacuole- this contains cell sap, a weak solution for sugar and salts.
- -Cytoplasms of all cells contains structures such as ribosomes.-Almost all cells except prokaryotes, have mitochondria.-Aerobic respiration occurs in mitochondria.-Cells with high rates of metabolism require large numbers of mitochondria to provide sufficient energy.
- Animal cells.
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