1. B4a-d

2. B4
Write definitions for the following keywords; Flaccid, Turgid, Plasmolysed, lysis, crenation
Stick the pictures next to them

3. What is a natural ecosystem?
Give an example
What is an artificial ecosystem?

4. Write definitions for the following keywords: community, habitat, population, ecosystem, zonation
Draw a kite diagram, what does it tell you?

5. What ways are there to collect insects?
Explain the mark, capture, recapture technique
What assumptions have to be made?

6. Write the equation for photosynthesis.
Describe van helmont and priestley’s experiments
What is glucose used for in a plant?
How can the rate of photosynthesis be increased?

7. Label the leaf structure
How is the leaf adapted for efficient photosynthesis?

8. Describe diffusion
How can the rate be increased?
Describe osmosis
Explain the term partially permiable