The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons

Options

A. Plumule
B. cotyledon
C. endosperm
D. Aleurone layer

Answer

To determine which part of the seed in other monocotyledons is comparable to the scutellum observed in a grain of wheat or maize, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Scutellum**:
- The scutellum is a modified seed leaf found in the seeds of certain monocotyledons like wheat and maize. It plays a crucial role in the germination process by absorbing nutrients.

2. **Identify the Options**:
- The options given are:
- A) Plumule
- B) Cotyledon
- C) Endosperm
- D) Alluron layer

3. **Analyze Each Option**:
- **Plumule**: This is the young shoot of the plant embryo. It does not correspond to the scutellum, which is specifically a seed leaf.
- **Cotyledon**: This is the seed leaf within the embryo of a seed. In monocots, the scutellum functions similarly to a cotyledon, as it is the part that absorbs nutrients.
- **Endosperm**: This is the tissue that provides nourishment to the developing embryo. It is not comparable to the scutellum, which is a part of the embryo itself.
- **Alluron layer**: This is a protein layer associated with the endosperm and does not serve the same function as the scutellum.

4. **Make a Conclusion**:
- Since the scutellum is a modified seed leaf that functions similarly to a cotyledon in other monocots, the correct answer is **B) Cotyledon**.

### Final Answer:
The scutellum observed in a grain of wheat or maize is comparable to the **cotyledon** in other monocotyledons.

---