Number of amino acids present in protoplasm is

Options

A. 20
B. 12
C. 10
D. 8

Answer

To solve the question regarding the number of amino acids present in protoplasm, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Amino Acids**:
- Amino acids are the building blocks of proteins. They are small molecules that combine to form proteins through peptide bonds.

2. **Role of Protoplasm**:
- Protoplasm is the living substance within a cell, which includes the cytoplasm and the nucleus. It contains all the organelles and is where many cellular processes occur.

3. **Protein Synthesis**:
- Proteins are synthesized from amino acids. The specific sequence of amino acids in a protein determines its structure and function.

4. **Standard Amino Acids**:
- There are 20 standard amino acids that are commonly used in the synthesis of proteins. These amino acids are encoded by the genetic code.

5. **Conclusion**:
- Since protoplasm contains all the necessary components for protein synthesis, including the amino acids, the number of amino acids present in protoplasm is 20.

6. **Final Answer**:
- Therefore, the correct answer to the question is **20**.