Question 17
Photosynthesis and Plant NutritionWhich of the labelled structures in the diagram are involved with the entry of carbondioxide for photosynthesis?
- A.I, II and III only
- B.I, II, III and VI
- C.I, II, V and VI
- D.I, II, III, and IV
Show the answer and explanation
Answer: C (I, II, V and VI)
Explanation
Carbon dioxide enters through the stoma, which is controlled by the two guard cells; the labels on the guard cells and pore are I, II, V and VI.