Question

C4 and CAM plants are _______.
a.
adaptations to arid environments
b.
adaptations to moist environments
c.
more common than C3 plants
d.
less efficient at water conservation than C3 plants

Answer 1

Hello there,

● Answer -
(a) Adaptations to arid environments

# C4 plants and CAM plants reduce waste of water by photorespiration in dry (arid) climates.

● C4 plants -
- C4 plants minimize photorespiration by separating initial CO2 fixation and the Calvin cycle in space, performing these steps in different cell types.

● CAM plants -
- CAM stands for Crassulacean acid metabolism plants.
- CAM plants minimize photorespiration and save water by separating these steps in time, between night and day.

Hope this helps you...