Question:
In $C_{4}$ plants, photorespiration does not occur.
$C_{4}$ plants have a mechanism that increases the concentration of $CO_{2}$ at the enzyme site.
In $C_{4}$ plants, photorespiration does not occur.
$C_{4}$ plants have a mechanism that increases the concentration of $CO_{2}$ at the enzyme site.
Updated On: Jul 6, 2022
- If both assertion and reason are true and reason is the correct explanation of assertion
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- If assertion is true but reason is false
- If both assertion and reason are false
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The Correct Option is A
Solution and Explanation
In $C_{4}$ plants photorespiration does not occur because they have a mechanism that increases the concentration of $CO_{2}$ at the enzyme site. This takes place when the $C_{4}$ acid from the mesophyll is broken down in the bundle sheath cells to release $CO_{2}$. This results in increasing the intracellular concentration of $CO_{2}$. This ensures that the $RuBisCO$ functions as a carboxylase, thus, minimising the oxygenase activity.
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Concepts Used:
Photosynthesis in Higher Plants
Processes Of Photosynthesis in Higher Plants:
Photosynthesis in higher plants involves the following processes:
- Light Reaction
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Light Reaction:
- This phenomenon occurs in the presence of light.
- The pigment absorbs light and produces energy in the form of ATP.
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Dark Reaction:
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