Question

level 5 q1 the picture below represents which stage of photosynthesis? a. dark reactions b. calvin cycle c. glycolysis d. light reactions
a. dark reactions
b. calvin cycle
c. glycolysis
d. light reactions

Explanation:

• Option A (Dark reactions): Also called the Calvin Cycle, occurs in the stroma, but the diagram likely shows thylakoid - related processes (light reactions), so A is incorrect.
• Option B (Calvin Cycle): Part of dark reactions, occurs in stroma, not matching the typical light - reaction - related diagram, so B is incorrect.
• Option C (Glycolysis): It is a process in cellular respiration, not photosynthesis, so C is incorrect.
• Option D (Light reactions): Light reactions of photosynthesis occur in the thylakoid membranes of chloroplasts. The diagram (showing chloroplast structure with thylakoids and processes like light absorption, electron transport) is consistent with light reactions.

Answer:

D. Light Reactions