Biology
Grade-9
Easy
Question
Which of the following process does not occur in C4 plants?
- Carboxylation
- Decarboxylation
- Phosphorylation
- Photorespiration
Hint:
A C4 plant is a plant that utilizes the C4 carbon fixation pathway. C4 plants are characterized by the following: Going through the C4 carbon fixation pathway. This pathway is when the CO2 is first bound to phosphoenolpyruvate in the mesophyll cell. Then, the process proceeds to the Calvin Cycle
The correct answer is: Photorespiration
- Photorespiration does not occur in C4 plants because they have a mechanism that increases the concentration of CO2 at the enzyme site. In the C4 pathway, carbon fixation ultimately results in the production of malic acid in the mesophyll cells. The malic acid is broken down in the bundle sheath to release CO2
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