The hormone reduces cellular glucose uptake and utilisation

Options

A. Glucagon
B. Insulin
C. Aldosterone
D. Thymosin

Answer

To solve the question regarding which hormone reduces cellular glucose uptake and utilization, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Hormones Listed**: The options provided are glucagon, insulin, aldosterone, and thymosin.

2. **Understand the Function of Each Hormone**:
- **Glucagon**: Secreted by the alpha cells of the pancreas, it increases blood glucose levels by promoting the conversion of glycogen to glucose in the liver and reducing glucose uptake by cells.
- **Insulin**: Secreted by the beta cells of the pancreas, it facilitates the uptake of glucose by cells, thereby lowering blood glucose levels.
- **Aldosterone**: Secreted by the adrenal cortex, it regulates sodium and potassium levels and does not directly influence glucose metabolism.
- **Thymosin**: Secreted by the thymus, it is involved in immune function and does not play a role in glucose metabolism.

3. **Analyze the Question**: The question specifically asks for the hormone that reduces cellular glucose uptake and utilization.

4. **Select the Correct Answer**: Based on the functions of the hormones:
- **Glucagon** is the hormone that reduces cellular glucose uptake and utilization, making it the correct answer.

5. **Eliminate Incorrect Options**:
- **Insulin** promotes glucose uptake, so it is incorrect.
- **Aldosterone** and **thymosin** do not affect glucose uptake, making them incorrect as well.

### Final Answer:
The hormone that reduces cellular glucose uptake and utilization is **glucagon**.

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