A hormone with seat of activity in liver-changing glucose into glycogen is produced by :

Options

A. thymus
B. pancreas
C. pituitary
D. parathyroid

Answer

To solve the question regarding which gland produces the hormone that converts glucose into glycogen in the liver, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Function of the Hormone**:
- The question specifies a hormone that changes glucose into glycogen. This process is known as glycogenesis.

2. **Recall the Hormone Involved**:
- The primary hormone responsible for converting glucose into glycogen is **insulin**.

3. **Determine the Source of Insulin**:
- Insulin is produced by the **beta cells** of the pancreas.

4. **Evaluate the Options Provided**:
- Option 1: Thymus - produces thymosin, not insulin.
- Option 2: Pancreas - produces insulin, which converts glucose into glycogen.
- Option 3: Pituitary - produces various hormones but not insulin.
- Option 4: Parathyroid - produces parathyroid hormone, not insulin.

5. **Conclude the Correct Answer**:
- Based on the information above, the correct answer is **Option 2: Pancreas**.

### Final Answer:
The hormone that changes glucose into glycogen is produced by the **pancreas**.

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