The aleurone layer in maize grain is specially rich in :-

Options

A. Proteins
B. Starch
C. Lipids
D. Auxins

Answer

To solve the question about the aleurone layer in maize grain, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Aleurone Layer**: The aleurone layer is a part of the endosperm in seeds, particularly in maize (corn). It is located just beneath the seed coat and surrounds the starchy endosperm.

2. **Composition of the Aleurone Layer**: The aleurone layer is known to be rich in various substances. It primarily contains proteins, but it can also have some starch and lipids. However, the key characteristic of the aleurone layer is its high protein content.

3. **Function of the Aleurone Layer**: During the germination of seeds, the aleurone layer plays a crucial role. It secretes enzymes (like amylase) that help break down stored starches and proteins in the endosperm, making them available for the developing plant.

4. **Conclusion**: Given that the aleurone layer is particularly rich in proteins and serves a vital function during germination, we can conclude that the correct answer to the question is that the aleurone layer in maize grain is specially rich in proteins.

### Final Answer:
The aleurone layer in maize grain is specially rich in **proteins**.

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