Question 21
Photosynthesis and Plant NutritionWhich of the following events does not occur in the light reaction stage of photosynthesis?
- A.Chlorophyll absorbs sunlight.
- B.Carbon (IV) oxide combines with hydrogen
- C.Photolysis of water occurs.
- D.Hydroxyl ions are produced.
Show the answer and explanation
Answer: B (Carbon (IV) oxide combines with hydrogen)
Explanation
Carbon (IV) oxide is reduced by hydrogen in the dark (light-independent) stage. Light absorption and splitting of water happen in the light stage.