Which one of the following hormones is not involved in sugar metabolism ?

Options

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

Answer

To determine which hormone is not involved in sugar metabolism, we can analyze the roles of the hormones listed in the question.

### Step-by-Step Solution:

1. **Identify the Hormones**: The question presents four hormones. We need to analyze each one to see if it plays a role in sugar metabolism.

2. **Cortisone**:
- Cortisone is a type of cortisol secreted by the adrenal cortex (specifically from the zona fasciculata).
- It is involved in carbohydrate metabolism as it increases blood glucose levels through gluconeogenesis, which is the process of converting fats and proteins into glucose.
- **Conclusion**: Cortisone is involved in sugar metabolism.

3. **Aldosterone**:
- Aldosterone is a mineralocorticoid hormone secreted by the adrenal cortex (from the zona glomerulosa).
- Its primary function is to regulate salt and water balance in the body, affecting blood pressure and pH levels.
- **Conclusion**: Aldosterone is not involved in sugar metabolism.

4. **Insulin**:
- Insulin is a hormone secreted by the beta cells of the pancreas.
- It is a hypoglycemic hormone that lowers blood glucose levels by facilitating the uptake of glucose into cells.
- **Conclusion**: Insulin is involved in sugar metabolism.

5. **Glucagon**:
- Glucagon is secreted by the alpha cells of the pancreas and is a hyperglycemic hormone.
- It raises blood glucose levels by promoting the conversion of glycogen to glucose in the liver.
- **Conclusion**: Glucagon is involved in sugar metabolism.

6. **Final Answer**: After analyzing all the hormones, we conclude that **aldosterone** is the hormone that is not involved in sugar metabolism.