Question:
During the reactions of HSK pathway in bundle sheath chloroplast, malate undergoes ______.
During the reactions of HSK pathway in bundle sheath chloroplast, malate undergoes ______.
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Decarboxylation of malate increases CO$_2$ concentration around RuBisCO.
Updated On: Feb 4, 2026
- decarboxylation
- reduction
- phosphorylation
- hydration
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The Correct Option is A
Solution and Explanation
Step 1: Understanding HSK (C$_4$) pathway.
In C$_4$ plants, malate is transported from mesophyll cells to bundle sheath cells.
Step 2: Reaction in bundle sheath.
Malate undergoes decarboxylation to release CO$_2$, which enters the Calvin cycle.
Step 3: Conclusion.
Hence, malate undergoes decarboxylation.
In C$_4$ plants, malate is transported from mesophyll cells to bundle sheath cells.
Step 2: Reaction in bundle sheath.
Malate undergoes decarboxylation to release CO$_2$, which enters the Calvin cycle.
Step 3: Conclusion.
Hence, malate undergoes decarboxylation.
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