In a cereal grain the single cotyledon of embryo is represented by

Options

A. Coleoptile
B. Coleorhiza
C. Scutellum
D. Prophyll

Answer

To answer the question, "In a cereal grain, the single cotyledon of the embryo is represented by," we will analyze the options provided and identify the correct one.

### Step-by-Step Solution:

1. **Understanding the Structure of Cereal Grains**:
- Cereal grains are classified as monocots, which means they have a single cotyledon in their embryo.

2. **Evaluating the Options**:
- **Option 1: Coloptile**: This is not the cotyledon; it is a protective sheath covering the plumule (the part of the embryo that develops into the shoot).
- **Option 2: Coleriza**: This is also not the cotyledon; it is a protective covering for the radicle (the part of the embryo that develops into the root).
- **Option 3: Scutellum**: This is the correct answer. The scutellum is indeed the single cotyledon found in cereal grains.
- **Option 4: Prophyllum**: This refers to a leaf-like structure and is not related to the cotyledon.

3. **Conclusion**:
- After analyzing all the options, the correct representation of the single cotyledon in a cereal grain is **Option 3: Scutellum**.

### Final Answer:
The single cotyledon of the embryo in a cereal grain is represented by **Scutellum**.

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