During seed germination, seed coat ruptures due to

Options

A. Differentiation of cotyledons
B. Massive glycolysis in endosperm and cotyledons
C. Massive imbibition fo water
D. Sudden increase in cell division

Answer

**Step-by-Step Solution:**

1. **Understanding Seed Germination**: Seed germination is the process by which a seed develops into a new plant. This process typically begins when a seed is sown in the soil and absorbs water.

2. **Role of Seed Coat**: The seed coat is the outer protective layer of the seed. For germination to occur, the seed coat must rupture, allowing the embryo to emerge.

3. **Evaluating Options**: The question provides four options regarding what causes the seed coat to rupture during germination:
- A) Differentiation of cotyledons
- B) Massive glycolysis in endosperm and cotyledons
- C) Massive imbibition of water
- D) Sudden increase in cell division

4. **Analyzing Each Option**:
- **Option A (Differentiation of cotyledons)**: This is not correct. The differentiation of cotyledons occurs after the seed has begun to germinate and is not responsible for the rupture of the seed coat.
- **Option B (Massive glycolysis in endosperm and cotyledons)**: This is also incorrect. While glycolysis provides energy for the seed, it does not directly cause the seed coat to rupture.
- **Option C (Massive imbibition of water)**: This is the correct answer. Imbibition refers to the absorption of water by the seed. As the seed absorbs water, it swells, increasing internal pressure until the seed coat ruptures.
- **Option D (Sudden increase in cell division)**: This is incorrect as well. While cell division is important for growth, it does not directly cause the seed coat to rupture.

5. **Conclusion**: The correct answer to the question is **C) Massive imbibition of water**. This process is crucial for the seed coat to rupture and for the seed to germinate.

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