Proteinaceous part of Maize endosperm is

Options

A. Apophysis
B. Aleurone layer
C. Peripheral layer
D. Scutellum

Answer

To answer the question about the proteinaceous part of the maize endosperm, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Maize Endosperm**: The maize endosperm is composed of various layers, each with distinct functions and compositions.

2. **Identify the Options**: The options provided are:
- A. Apophysis
- B. Alurone layer
- C. Peripheral layer
- D. Skittalum

3. **Analyze Each Option**:
- **Apophysis**: This layer is not made up of protein.
- **Alurone layer**: This is a single cell layer located at the outermost region of the endosperm and is made up of Alurone protein. It plays a crucial role in providing nutrients to the developing embryo by secreting enzymes that dissolve stored food.
- **Peripheral layer**: Similar to Apophysis, this layer is also not made up of protein.
- **Skittalum**: This layer is not composed of protein either.

4. **Conclusion**: Based on the analysis, the only option that is proteinaceous is the **Alurone layer**, which is made up of Alurone protein.

5. **Final Answer**: The proteinaceous part of the maize endosperm is the **Alurone layer**.