Worksheet Chapter 2: Leaf Structure and Function

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

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

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

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

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

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

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

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

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

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