In CAM plants, CO2 is
a. temporarily fixed in phloem cells and later permanently fixed in the bundle-sheath cells.
b. mainly obtained from oxidative respiratory processes.
c. brought up to the leaves through air spaces in the stem so that the stomata of the leaves can be kept shut to prevent water loss.
d. temporarily fixed at night and later permanently fixed during the day.
e. fixed into organic matter just by the action of the enzyme rubisco.

In CAM plants, CO2 is temporarily fixed at night and then permanently fixed during the day when the plant conducts photosynthesis. This adaptation allows them to minimize water loss while still obtaining the necessary carbon for growth. The process involves storing CO2 as organic acids at night and utilizing it during the day for energy production. ;

Answered by GinnyAnswer | 2025-07-03

In CAM plants, CO2 is temporarily fixed at night and then permanently fixed during the day, allowing them to minimize water loss while performing photosynthesis. This method involves storing CO2 as organic acids during the night for use during the day. Therefore, the correct answer to the question is: 'temporarily fixed at night and later permanently fixed during the day.'
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Answered by Anonymous | 2025-07-04