Hormone that is having receptor on the surface of cell membrane is

Options

A. estrogen
B. iodothyronines
C. FSH
D. testosterone

Answer

To solve the question regarding which hormone has receptors on the surface of the cell membrane, we can follow these steps:

### Step-by-Step Solution

1. **Understand the Question**: The question asks for a hormone that has its receptor located on the surface of the cell membrane. We need to identify which of the given options fits this criterion.

2. **Analyze the Options**: The options provided are:
- Estrogen
- Iodothyronins
- FSH (Follicle Stimulating Hormone)
- Testosterone

3. **Identify Hormone Types**:
- **Estrogen**: Primarily a steroid hormone, which usually binds to intracellular receptors, but there are also G protein-coupled estrogen receptors (GPER) that are located on the cell membrane.
- **Iodothyronins**: These are thyroid hormones (like T3 and T4) that typically have intracellular receptors.
- **FSH**: This is a peptide hormone that binds to receptors on the cell membrane.
- **Testosterone**: A steroid hormone that generally binds to intracellular receptors.

4. **Determine the Correct Answer**: Among the options, FSH is a hormone that binds to receptors on the cell membrane. While estrogen has GPER, the question specifically asks for a hormone with surface receptors, making FSH the most appropriate answer.

5. **Final Answer**: The hormone that has receptors on the surface of the cell membrane is **FSH (Follicle Stimulating Hormone)**.