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Standard XII
Biology
Gibberellin
Question

The aleurone synthesizes and secretes digestive enzymes that hydrolyze nutrients stored in the endosperm, in the presence of
  1. Gibberellin
  2. Auxin
  3. Cytokinin
  4. Ethylene

A
Auxin
B
Ethylene
C
Cytokinin
D
Gibberellin
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Solution
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The aleurone layer is the outermost layer of the endosperm. It synthesizes and secretes digestive enzymes that hydrolyze nutrients stored in the endosperm in presence of enzyme gibberellin. Gibberellin is released by the embryo. The digestive enzymes hydrolyze the components stored in the endosperm to support the early growth of the embryo.
Thus, the correct answer is option B.

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