MP Board · Class 11 · Biology · Plant Growth and DevelopmentWhat is the primary precursor of Indole-3-acetic acid (IAA)?
Step-by-Step Solution
Tryptophan is the primary amino acid that acts as a precursor for the biosynthesis of the natural auxin, Indole-3-acetic acid (IAA), in plants.
Detailed Options Breakdown
Option : Methionine
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Plant Growth and Development.
Option 1: Tryptophan (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Carotenoid
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Plant Growth and Development.
Option 3: Acetyl-CoA
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Plant Growth and Development.
💡 Study Guide: This question tests core syllabus concepts from Plant Growth and Development. For formulas, key summaries, and mock exam reference guides, read the full Plant Growth and Development Revision Notes.