Cells and Cell Structure
- Created by: bethgarrigan
- Created on: 15-12-15 15:53
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- B2.1 Cells and Simple Cell Transport
- Human and Animal Cells
- Nucleus controls activities of the cell
- Cytoplasm allows chemical reactions to take place
- Cell Membrane controls the passage of substances in and out of the cell
- Mitochondria is where energy is released in Respiration
- Ribosome is where protein synthesis occurs
- Plant Cells
- Cell wall made of cellulose which strengthens the cell
- Chloroplasts absorb light energy to make food
- Permanent Vacuole filled with cell sap keeps the cells rigid to support the plant
- Other Cells
- Bacterial cell consists of cytoplasm and a membrane surrounded by a cell wall
- Yeast is a single-celled organism which have a nucleus, cytoplasm and a membrane surrounded by a cell wall.
- Dissolved Substances
- Dissolved substances move into and out of cells by diffusion
- Diffusion is the spreading of particles from a higher concentration to a lower concentration
- The greater the difference in concentration the faster the rate of diffusion
- Oxygen required for Respiration passes through cell membranes by diffusion
- Human and Animal Cells
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