Question

How is photosynthesis similar in C4 and CAM plants?

• A. In both cases, only photosystem I is used.
• B. Both types of plants make sugar without the Calvin cycle.
• C. In both cases, rubisco is not used to fix carbon initially.
• D. Both types of plants make most of their sugar in the dark.

Answer 1

The correct option is C

In both cases, rubisco is not used to fix carbon initially.

C4 and CAM plants are plants that use certain special compounds to gather carbon dioxide (CO ₂ ) during photosynthesis. Using these compounds allows these plants to extract more CO ₂ from a given amount of air, helping them prevent water loss in dry climates.