Question:
The process of seed germination is stimulated due to the synthesis of hydrolytic enzymes. Which hormone is responsible for this process?
The process of seed germination is stimulated due to the synthesis of hydrolytic enzymes. Which hormone is responsible for this process?
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Gibberellin triggers synthesis of alpha-amylase and other hydrolases in the aleurone layer.
Updated On: Nov 12, 2026
- Abscissic Acid.
- Cytokinin.
- Ethylene.
- Gibberellin.
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
During germination, stored food in the endosperm must be broken down for the growing embryo.
Step 2: Role of gibberellin
After imbibition, the embryo releases gibberellin. It reaches the aleurone layer and switches on synthesis of hydrolytic enzymes such as \(\alpha\)-amylase and proteases.
Step 3: Result
These enzymes convert starch and proteins into soluble sugars and amino acids. Abscisic acid acts oppositely and keeps seeds dormant.
Final Answer:
Gibberellin is responsible for the synthesis of hydrolytic enzymes. \[ \boxed{\text{(D) }\text{Gibberellin.}} \]
During germination, stored food in the endosperm must be broken down for the growing embryo.
Step 2: Role of gibberellin
After imbibition, the embryo releases gibberellin. It reaches the aleurone layer and switches on synthesis of hydrolytic enzymes such as \(\alpha\)-amylase and proteases.
Step 3: Result
These enzymes convert starch and proteins into soluble sugars and amino acids. Abscisic acid acts oppositely and keeps seeds dormant.
Final Answer:
Gibberellin is responsible for the synthesis of hydrolytic enzymes. \[ \boxed{\text{(D) }\text{Gibberellin.}} \]
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