Question:
Correct sequence of biogenetic pathway reactions in Shikimic acid biosynthesis is:
Correct sequence of biogenetic pathway reactions in Shikimic acid biosynthesis is:
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Quinic acid comes before Shikimic acid in the "Dehydro" stages.
Updated On: May 28, 2026
- D, A, B, C
- D, A, C, B
- A, D, B, C
- A, B, C, D
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The Correct Option is C
Solution and Explanation
Step 1: Concept
The Shikimic acid pathway is the primary route for the biosynthesis of aromatic amino acids in plants.
Step 2: Meaning
Precursors PEP and Erythrose 4-P are converted through cyclic intermediates into Shikimic acid.
Step 3: Analysis
The pathway begins with the formation of 2-keto-3-deoxy-7-phospho-D-glucoheptonic acid (A). This cyclizes to 3-dehydroquinic acid (D). It then dehydrates to 3-dehydroshikimic acid (B) , which is finally reduced to Shikimic acid (C).
Step 4: Conclusion
The correct sequence is A-D-B-C.
Final Answer: (C)
The Shikimic acid pathway is the primary route for the biosynthesis of aromatic amino acids in plants.
Step 2: Meaning
Precursors PEP and Erythrose 4-P are converted through cyclic intermediates into Shikimic acid.
Step 3: Analysis
The pathway begins with the formation of 2-keto-3-deoxy-7-phospho-D-glucoheptonic acid (A). This cyclizes to 3-dehydroquinic acid (D). It then dehydrates to 3-dehydroshikimic acid (B) , which is finally reduced to Shikimic acid (C).
Step 4: Conclusion
The correct sequence is A-D-B-C.
Final Answer: (C)
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