How is photosynthesis similar in C₄ plants 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.

Question

Quizplus · Accepted Answer

Both C₄ and CAM plants have adapted to minimize photorespiration and conserve water in hot and dry environments. They both use alternative mechanisms to initially fix carbon that do not involve the use of rubisco. C₄ plants have specialized leaf anatomy and biochemical pathways to fix carbon in mesophyll cells, while CAM plants only open their stomata at night to fix carbon in specialized cells called storage parenchyma.

How Is Photosynthesis Similar in C₄ Plants and CAM Plants