Question:
What is true about C$_4$ plants _________
What is true about C$_4$ plants _________
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{C$_4$ plants = mesophyll (C$_4$) + bundle sheath (C$_3$)}.
Updated On: Mar 6, 2026
- C$_3$ pathway reactions take place in bundle sheath chloroplast and C$_4$ pathway reactions in mesophyll chloroplast
- Both reactions occur in mesophyll chloroplast
- Both reactions occur in bundle sheath chloroplast
- C$_3$ pathway reactions take place in mesophyll chloroplast and C$_4$ pathway reactions in bundle sheath chloroplast
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The Correct Option is A
Solution and Explanation
Step 1: Understanding C$_4$ pathway.
C$_4$ plants show spatial separation of initial CO$_2$ fixation and Calvin cycle to minimize photorespiration.
Step 2: Location of reactions.
C$_4$ pathway occurs in mesophyll chloroplasts.
C$_3$ pathway (Calvin cycle) occurs in bundle sheath chloroplasts.
Step 3: Conclusion.
Therefore, option (A) correctly describes the reactions in C$_4$ plants.
C$_4$ plants show spatial separation of initial CO$_2$ fixation and Calvin cycle to minimize photorespiration.
Step 2: Location of reactions.
C$_4$ pathway occurs in mesophyll chloroplasts.
C$_3$ pathway (Calvin cycle) occurs in bundle sheath chloroplasts.
Step 3: Conclusion.
Therefore, option (A) correctly describes the reactions in C$_4$ plants.
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