MCQ
Indole acetic acid is a:
- AChemical found in the retina of nocturnal animals
- BPesticide
- CGood fertilizer
- DNaturally occurring auxin
Explanation:
Indole-3-acetic acid (IAA) is the most common, naturally occurring, plant hormone of the AUXIN class.It is the best known of the auxins,and has been the subject of extensive studies by plant physiologists.IAA is a derivative of indole, containing a carboxymethyl substituent.
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$(A)$ Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group.
$(B)$ A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme.
Select the correct option.