Which of the following has the maximum % of the total cellular
mass?

Options

A. Protein
B. Carbohydrate
C. Lipid
D. Nucleic acid.

Answer

To determine which of the following has the maximum percentage of total cellular mass among proteins, carbohydrates, lipids, and nucleic acids, we can analyze the typical composition of a cell.

### Step-by-Step Solution:

1. **Identify the Components**: We are given four components to compare: proteins, carbohydrates, lipids, and nucleic acids.

2. **Review the Composition of Each Component**:
- **Proteins**: Proteins are the most abundant macromolecules in cells, typically making up about 50% of the total cellular mass.
- **Carbohydrates**: Carbohydrates usually constitute around 10% of the total cellular mass.
- **Lipids**: Lipids are also significant in cellular structure and function, accounting for about 40% of the total cellular mass.
- **Nucleic Acids**: Nucleic acids (DNA and RNA) generally represent about 10% of the total cellular mass.

3. **Compare the Percentages**:
- Proteins: 50%
- Carbohydrates: 10%
- Lipids: 40%
- Nucleic Acids: 10%

4. **Determine the Maximum Percentage**: From the percentages listed, proteins have the highest percentage of total cellular mass at 50%.

5. **Conclusion**: Therefore, the component that has the maximum percentage of total cellular mass is **proteins**.

### Final Answer:
**Proteins** have the maximum percentage of the total cellular mass.