Seed leaf is

Options

A. Leaf present over the plumule
B. Cotyledon
C. Coleoptile
D. Mesocotyl

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the definition or identification of "seed leaf".

2. **Identifying the Components of a Seed**: A seed consists of several parts, including the seed coat, embryo, radical, plumule, and cotyledons.

3. **Defining the Seed Leaf**: The term "seed leaf" refers specifically to the cotyledons of the seed. Cotyledons are the first leaves that appear when a seed germinates.

4. **Differentiating Between Seed Parts**:
- The **radical** develops into the primary root.
- The **plumule** develops into the aerial shoot.
- The **cotyledons** (seed leaves) can be one (monocotyledon) or two (dicotyledon).

5. **Understanding the Function of Cotyledons**: Cotyledons may serve as storage for food and can also perform photosynthesis.

6. **Identifying the Correct Answer**: Based on the information, the seed leaf is identified as the cotyledon. The other options (plumule, cleoptile, mesocotyle) do not correspond to the term "seed leaf".

7. **Final Answer**: Therefore, the correct answer to the question "Seed leaf is" is **cotyledon**.

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