Which of the following is not the function of androgen in males ?

Options

A. Stimulate muscular growth , growth of facial and axillary hair
B. Influence libido
C. Produce catabolic effect on protein and carbohydrate metabolism
D. Stimulate aggressiveness and low pitch of voice

Answer

To determine which of the following is not a function of androgens in males, we need to analyze the roles of androgens and compare them to the options provided.

### Step-by-Step Solution:

1. **Understanding Androgens**:
- Androgens are male sex hormones, with testosterone being the most well-known. They play a crucial role in male reproductive functions and the development of secondary sexual characteristics.

2. **Identifying Functions of Androgens**:
- **Stimulate Muscular Growth**: Androgens promote muscle growth and strength, which is a known function.
- **Growth of Facial and Auxiliary Hair**: Androgens are responsible for the development of facial and body hair during puberty, another established function.
- **Influence Libido**: Androgens significantly affect sexual desire (libido) in males.
- **Stimulate Aggressiveness and Low Pitch of Voice**: Androgens contribute to behaviors such as aggressiveness and the development of a deeper voice in males during puberty.

3. **Analyzing the Options**:
- The first three options (stimulating muscular growth, growth of facial and auxiliary hair, and influencing libido) are all functions of androgens.
- The fourth option mentions producing a catabolic effect on protein and carbohydrate metabolism. This function is not associated with androgens but rather with cortisol, which is a hormone produced by the adrenal cortex.

4. **Conclusion**:
- The function that is not associated with androgens in males is the production of a catabolic effect on protein and carbohydrate metabolism.

### Final Answer:
The correct option that does not represent a function of androgens in males is: **to produce catabolic effect on protein and carbohydrate.**

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