2. Structure and Function

cell_diagram.jpg
Cells Alive An excellent site with interactive animations, cell models and quizzes.
Cells Alive worksheet and quiz Complete this worksheet to learn more about the structure and function of cells.
Cell Biology - Structure and Functions including drawings of individual organelles.
3D Cell Explorer learning through visualisation.
Cell Structure and Functions including descriptions and interactive diagrams.
Video of active transport through a cell membrane
Membrane Function - Investigating osmosis using chicken eggs



Student worksheet - Investigating osmosis using chicken eggs.

1. In the plant cell, what organelle is responsible for the production of food?
Answer: Chloroplasts
2. What is the main purpose of the cell membrane?
Answer: It helps to regulate the passage of materials between the wall and its environment.
3. What do we call the process when a sugar cube dissolves in a cup of water?
Answer: Diffusion
4. Osmosis is a type of diffusion. However, what is being diffused in osmosis?
Answer: Water
5. What is the difference between endocytosis and exocytosis?
Answer: Endocytosis - the process that cells use to take in large molecules that can not fit through the cell membrane. Exocytosis - the process that cells use to expel large molecules from the cell.