Multiple choice

CO2 double fixation occurs both in the C4 and CAM plants. Which of the following option brings out the actual difference between this two?

  1. The compensation points in such two plants are different.

  2. The two carboxylising enzymes in these two plants are different.

  3. Fixation of CO2 in the C4 plants is isolated by space where in CAM plants it is isolated by time.

  4. Two pathways of CO2 fixation vary in the two plants.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

C4 plants possess 2 individual cells- mesophyll cells and bundle sheath cells. Difference between C4  and CAM plants is CAM plants have only one cell and  they open their stomata during night and close during day. Fixation of CO2 in the C4 plants is isolated by space where in CAM plants it isisolated by time.

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