Question:
Zinc is responsible for the biosynthesis of which plant auxin?
Zinc is responsible for the biosynthesis of which plant auxin?
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Zinc functions:
- Auxin (IAA) biosynthesis.
- Tryptophan synthesis.
- Zinc deficiency: Little leaf disease.
- Auxin (IAA) biosynthesis.
- Tryptophan synthesis.
- Zinc deficiency: Little leaf disease.
Updated On: Sep 1, 2026
- NAA
- IBA
- IAA
- 2,4-D
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of the role of zinc in auxin biosynthesis.
Step 2: Detailed Explanation:
Zinc is responsible for the biosynthesis of IAA (Indole-3-acetic acid).
It is required for tryptophan synthesis, which is a precursor of IAA.
NAA (A): Synthetic auxin.
IBA (B): Synthetic auxin.
2,4-D (D): Synthetic auxin.
Thus, zinc is involved in IAA biosynthesis.
Step 3: Final Answer:
Thus, zinc is responsible for the biosynthesis of IAA, which corresponds to option (C).
[0.5cm]
This question tests knowledge of the role of zinc in auxin biosynthesis.
Step 2: Detailed Explanation:
Zinc is responsible for the biosynthesis of IAA (Indole-3-acetic acid).
It is required for tryptophan synthesis, which is a precursor of IAA.
NAA (A): Synthetic auxin.
IBA (B): Synthetic auxin.
2,4-D (D): Synthetic auxin.
Thus, zinc is involved in IAA biosynthesis.
Step 3: Final Answer:
Thus, zinc is responsible for the biosynthesis of IAA, which corresponds to option (C).
[0.5cm]
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