- Explain that the basic unit of all living things is the cell.
- Identify structure and state the function of the main organelles in the cell such as nucleus, nuclear membrane, chromatin, cytoplasm, cell membrane, vacuole, mitochondria, chloroplast, cell wall.
- Identify the main organelles from diagrams.
- Compare and contrast- plant and animal cells.
- Explain how the structure of specialised cells is related to function.
- Define the process of diffusion as the net movement of molecules from a region of high concentration to a region of low concentration.
- Define the process of osmosis as the net movement of water molecules from a region of higher water potential, to a region of lower potential across a selectively permeable membrane.
- Explain that osmosis is a subset of diffusion and that osmosis is restricted to the net movement of water molecules whilst diffusion involves the movement of any type of molecules. In addition, be aware that a selectively permeable membrane is involved in osmosis whilst a membrane need not necessarily be present for diffusion.
- Explain how animal and plant cells behave differently in solutions of varying water potential.
- Appreciate the importance of diffusion and osmosis to living systems and list examples of both processes.