The synthesis of amlyase in certain cereals is stimulated by

Options

A. IAA
B. GA
C. OK
D. ABA

Answer

To answer the question regarding what stimulates the synthesis of amylase in certain cereals, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Amylase**: Amylase is an enzyme that catalyzes the hydrolysis of starch into sugars. It plays a crucial role in the germination of seeds by breaking down stored starches into simpler sugars that can be used for energy.

2. **Identifying the Hormones**: The question provides several options: IAA (Indole-3-acetic acid), GA (Gibberellic acid), and ABA (Abscisic acid). Each of these hormones has different roles in plant growth and development.

3. **Role of Gibberellic Acid (GA)**: Gibberellic acid is known to promote growth and development in plants. It is particularly important in breaking seed dormancy and stimulating the germination process.

4. **Gibberellic Acid and Amylase Synthesis**: During seed germination, GA stimulates the synthesis of amylase in the aleurone layer of certain cereals. This is crucial because the amylase produced will hydrolyze starch stored in the seed into glucose, which provides energy for the growing embryo.

5. **Conclusion**: Based on the role of gibberellic acid in stimulating amylase synthesis, the correct answer to the question is GA (Gibberellic acid).

### Final Answer:
The synthesis of amylase in certain cereals is stimulated by Gibberellic Acid (GA).

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