Question

Which of the following is not needed for photosynthesis?

• A. Iodine solution
• B. Carbon dioxide
• C. Chlorophyll
• D. Water

Answer 1

The correct option is A Iodine solution

• Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive. Carbon dioxide, water and light are all needed for photosynthesis to take place. Chlorophyll is a green photosynthetic pigment found in plants, algae, and cyanobacteria. Chlorophyll is vital for photosynthesis, it allows plants to absorb energy from light.
• Iodine solution is not required for photosynthesis.

So, the correct answer is 'Iodine solution'.