Biology Unit 2a (B2): Cells
- Created by: Clover
- Created on: 12-02-16 14:44
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- Biology: Cells
- Animal Cells
- Nucleus: Contains DNA that controls the activities of the cell.
- Cytoplasm: gel-like substance where most of the chemical reactions happen. It contains enzymes that control these chemical reactions.
- Cell Membrane: Holds the cell together and controls what goes in and out.
- Mitochondria: 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: Made of cellulose. It supports and strengthens the cell.
- Permanent Vacuole: These absorb light energy to make food for the plant. Contains cell sap, a weak solution of sugar and salts.
- The plant cell also contains the same features as the animal cells e.g. Cytoplasm.
- Chloroplasts: These are where photosynthesis occurs, which makes food for the plant. They contain a green substance called chlorophyll.
- Yeast Cells
- Yeast Cells are single-celled Organisms.
- They all contain these parts such as Nucleus, Cell Membrane and Cytoplasm. Which is surrounded by a cell wall.
- Bacterial Cells
- They DON'T have a nucleus.
- The DNA (genetic material) floats in the cytoplasm because they DON'T have a nucleus.
- These cells all contain the same parts such as Cell Membrane and Cytoplasm that is also surrounded by a Cell Wall.
- It is also a single-celled organism.
- Animal Cells
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