Which hormone promotes cell division , protein synthesis and bone growth

Options

A. ADH
B. ACTH
C. PTH
D. GH

Answer

To determine which hormone promotes cell division, protein synthesis, and bone growth, we can analyze each option provided:

1. **Identify the Hormones**: The options given are:
- a. ADH (Anti-Diuretic Hormone)
- b. ACTH (Adrenocorticotropic Hormone)
- c. PTH (Parathyroid Hormone)
- d. GH (Growth Hormone)

2. **Evaluate ADH**:
- ADH primarily regulates water balance in the body by acting on the kidneys to promote water reabsorption.
- **Conclusion**: ADH does not promote cell division, protein synthesis, or bone growth.

3. **Evaluate ACTH**:
- ACTH stimulates the adrenal cortex to release corticosteroids, which are involved in stress response and metabolism but do not directly promote cell division, protein synthesis, or bone growth.
- **Conclusion**: ACTH is not the correct answer.

4. **Evaluate PTH**:
- PTH regulates calcium levels in the blood and bone metabolism but does not directly promote cell division or protein synthesis.
- **Conclusion**: PTH does not fit the criteria of the question.

5. **Evaluate GH**:
- GH, or Growth Hormone, is known for its role in promoting growth, cell division, and protein synthesis. It stimulates growth in various tissues, including bones.
- **Conclusion**: GH is the hormone that promotes cell division, protein synthesis, and bone growth.

6. **Final Answer**: Based on the evaluations, the hormone that promotes cell division, protein synthesis, and bone growth is **d. GH (Growth Hormone)**.