Question

Many cactus plants, such as the species shown in the illustration, use a special type of photosynthesis called CAM photosynthesis. This specialized process allows the cactus plant to keep the stoma or leaf openings closed during the day. Most other plant species keep their stoma open during daylight hours. Which is the MOST likely reason that cactus use this special photosynthetic process?

Answer 1

Answer: B: To conserve Water

Explanation: USA test prep

Answer 2

Correct answer: CAM Photosynthesis

The CAM Photosynthesis stand for Crassulacean acid metabolism, which takes place in the mesophyll of the plants that are adapted to dry environments such as pineapple and cacti.

In such plant opening of stomata takes place during the night and Calvin cycle occurs during the day. The stomata of the leaves remain closed during the day in order to reduce evaporation and open at night to gather carbon dioxide.