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| Question | Answer |
| What is Osmosis? | The movement of water. |
| What is Osmosis similar to? | Diffusion. |
| How would you describe the movement of water molecules in osmosis? | Random and require no energy from the cell. |
| How would you describe the membrane osmosis takes place across? | A partially permeable membrane. |
| Does the water travel from a higher water concentration to a lower water concentration or a lower water concentration to a higher water concentration? | Higher water concentration to a lower water concentration. |
| What is the cell membrane an example of? | A partially permeable membrane. |
| What is active transport? | The movement of substances against a concentration gradient and/or across a cell membrane, using energy. |
| Where does active transport get energy from? | Energy is released in respiration. |
| What can be re-absorbed in the kidney tubules by active transport? | Glucose. |
| What chemical is transported in the human body using active transport? | Oxygen. |
| What is the correct name for the part of the enzyme that binds with other molecules? | Active site. |
| What factor can be changed without altering the shape of the enzyme? | Concentration |
| What is diffusion? | The net movement of particles of a gas or a solute. |
| How does concentration affect diffusion? | Diffusion occurs more rapidly when there is a larger difference in concentration. |
| Describe one example of diffusion. | The diffusion of oxygen into the cells of the body from the bloodstream as the cells are respiring (and using up oxygen). |
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