Cholesterol is required for synthesis of

Options

A. Insulin
B. Epinephrine
C. Oxytocin
D. Estrodiol

Answer

To answer the question "Cholesterol is required for synthesis of...", we will analyze each option provided and determine which one is correct.

### Step-by-Step Solution:

1. **Understand the Role of Cholesterol**: Cholesterol is a type of lipid that is essential for the synthesis of various steroid hormones in the body. It serves as a precursor for the production of these hormones.

2. **Evaluate the Options**:
- **Option 1: Insulin**: Insulin is a peptide hormone produced by the beta cells of the pancreas. It is not synthesized from cholesterol. Therefore, this option is incorrect.
- **Option 2: Epinephrine**: Epinephrine (also known as adrenaline) is a hormone produced by the adrenal medulla. It is derived from the amino acid tyrosine, not cholesterol. Thus, this option is also incorrect.
- **Option 3: Oxytocin**: Oxytocin is a peptide hormone released from the posterior pituitary gland. It is involved in various functions such as stimulating uterine contractions and milk ejection. Oxytocin is not synthesized from cholesterol, making this option incorrect as well.
- **Option 4: Estradiol**: Estradiol is a steroid hormone that is synthesized from cholesterol. It plays a crucial role in regulating the menstrual cycle and other functions in the female body. Therefore, this option is correct.

3. **Conclusion**: Based on the analysis of the options, cholesterol is required for the synthesis of estradiol.

### Final Answer:
Cholesterol is required for the synthesis of **Estradiol** (Option 4).

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