Which of the following statements is associated with the ADH or vasopressin

Options

A. enzyme that hydrolyses peptides
B. hormone secreted by pituitary that promotes reabsorption of water from glomerular filtrate
C. hormone that promotes glycogenolysis
D. energy rich compound connected with muscle contraction

Explanation

### Step-by-Step Solution:

1. **Understanding ADH/Vasopressin**:
- ADH stands for Antidiuretic Hormone, also known as vasopressin. It plays a crucial role in regulating water balance in the body.

2. **Function of ADH**:
- The primary function of ADH is to promote the reabsorption of water in the kidneys, specifically from the distal convoluted tubule and collecting ducts. This process decreases the volume of urine produced.

3. **Mechanism of Action**:
- When the body experiences low blood volume or low blood pressure, the hypothalamus detects this change and signals the posterior pituitary gland to release ADH. This hormone then acts on the kidneys to increase water reabsorption, which helps to concentrate urine and conserve water.

4. **Evaluating the Statements**:
- **Statement 1**: "It is an enzyme that hydrolyzes peptides." - This is incorrect as ADH is a hormone, not an enzyme.
- **Statement 2**: "Hormone secreted by the pituitary that promotes reabsorption of water from the glomerular filtrate." - This is correct as it accurately describes the function of ADH.
- **Statement 3**: "Hormone that promotes glycogenolysis." - This is incorrect as glycogenolysis is regulated by glucagon and epinephrine, not ADH.
- **Statement 4**: "It is an energy-rich compound connected with muscle contraction." - This is incorrect as ATP is the energy-rich compound involved in muscle contraction, not ADH.

5. **Conclusion**:
- The only statement that accurately describes the role of ADH is Statement 2, making it the correct answer.

### Final Answer:
- The correct statement associated with ADH or vasopressin is: **"Hormone secreted by the pituitary that promotes reabsorption of water from the glomerular filtrate."**

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