Which of the following is mismatched

Options

A. Parathormone - Decreases blood calcium
B. Thyroxine - Increases BMR
C. Growth hormone - Promotes the physical growth of body
D. Insulin - Results in hypoglycemia.

Answer

To solve the question "Which of the following is mismatched?", we need to analyze each option provided and determine if the descriptions of the hormones are accurate.

### Step-by-Step Solution:

1. **Identify the Hormones and Their Functions:**
- **Parathormone (PTH):** Secreted by the parathyroid glands, its primary function is to increase blood calcium levels by stimulating the release of calcium from bones and increasing calcium absorption in the intestines and kidneys.
- **Thyroxine (T4):** Produced by the thyroid gland, it increases the basal metabolic rate (BMR) by stimulating tissue cells.
- **Growth Hormone (GH):** Secreted by the pituitary gland, it promotes physical growth and development in the body.
- **Insulin:** Produced by the pancreas, it lowers blood glucose levels by facilitating the conversion of glucose into glycogen in the liver.

2. **Analyze Each Option:**
- **Option 1:** Parathormone decreases blood calcium levels.
- This is incorrect. Parathormone actually increases blood calcium levels.
- **Option 2:** Thyroxine increases BMR.
- This is correct. Thyroxine does increase the BMR.
- **Option 3:** Growth hormone promotes physical growth.
- This is correct. Growth hormone is responsible for physical growth.
- **Option 4:** Insulin is a hypoglycemic hormone.
- This is correct. Insulin lowers blood glucose levels.

3. **Determine the Mismatched Option:**
- The only option that is mismatched is Option 1, as parathormone does not decrease blood calcium levels; it increases them.

### Conclusion:
The mismatched option is **Option 1: Parathormone decreases blood calcium level.**