Worksheet Chapter 2: Leaf Structure and Function

1. Differentiate between the internal structure and function of Palisade Mesophyll and Spongy Mesophyll.

2. Explain the significance of the compensation point for crop production in agricultural greenhouses.

3. Which enzyme catalyzes the initial carbon fixation step in the Calvin cycle?

4. State two structural adaptations of palisade mesophyll cells for maximum photosynthetic efficiency.

5. Describe the effect of high relative air humidity on the rate of transpiration and explain why this occurs.

6. True or False: The light-independent reaction (Calvin cycle) of photosynthesis occurs inside the thylakoid membrane.

7. True or False: At the compensation point, the net intake of carbon dioxide by a plant from the atmosphere is zero.

8. Fill in the blank: The splitting of water molecules by light energy during light-dependent reactions is called ________.

9. Explain how potassium ion (K+) movement leads to stomatal opening during daytime.

10. Outline the main events occurring during the light-dependent reaction in chloroplast thylakoids.