Question

The oxygen in photosynthesis is released from:

• A. Water
• B. Chlorophyll
• C. Carbon dioxide
• D. All of these

Answer 1

The correct option is A

Water

The correct answer is option A.

Explanation of the correct answer:

1. Photosynthesis is the process by which green plants synthesize glucose by utilizing carbon dioxide and water in the presence of chlorophyll and sunlight.
2. The splitting of water H₂O molecules into a hydrogen ion H⁺ and hydroxide ions OH occurs during photolysis.
3. These hydroxide ions OH react to produce oxygen gas O₂.

Explanation of the incorrect options:

Option B

The green pigment chlorophyll is crucial for capturing sunlight and providing energy for the photosynthetic process in green plants.

Option C

Plants capture carbon dioxide through microscopic pores under leaves, as well as through flowers and branches.

Final answer: The oxygen in photosynthesis is released from Water.