Insulin produced by `beta`-cells in our body contains amino acids

Options

A. 50
B. 51
C. 52
D. 53

Answer

To answer the question regarding the number of amino acids in insulin produced by beta cells in the body, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Source of Insulin**:
- Insulin is produced by the beta cells located in the pancreas.

2. **Understand the Structure of Insulin**:
- Insulin consists of two chains known as Chain A and Chain B.

3. **Determine the Number of Amino Acids in Each Chain**:
- Chain A contains **21 amino acids**.
- Chain B contains **30 amino acids**.

4. **Calculate the Total Number of Amino Acids**:
- To find the total number of amino acids in insulin, add the number of amino acids in Chain A and Chain B:
\[ \text{Total Amino Acids} = \text{Amino Acids in Chain A} + \text{Amino Acids in Chain B} = 21 + 30 = 51 \]

5. **Conclusion**:
- Therefore, insulin contains a total of **51 amino acids**.

### Final Answer:
Insulin produced by beta cells in our body contains **51 amino acids**.

---