In terms of percentage of the total cellular mass, the correct arrangement of biomolecules in the descending order is

Options

A. Carbohydrates gt Lipids gt Nucleic Acids
B. Nucleic Acids gt Carbohydrates gt Lipids
C. Nucleic acids gt Lipids gt Carbohydrates
D. Carbohydrates gt Nucleic acid gt Lipids

Answer

To solve the question regarding the correct arrangement of biomolecules in terms of their percentage of total cellular mass in descending order, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Major Components of Cellular Mass**:
- The major components of cellular mass include water, proteins, nucleic acids, carbohydrates, lipids, and ions.

2. **Determine the Percentage of Each Component**:
- Water: Approximately 70% of total cellular mass.
- Proteins: Approximately 10 to 15% of total cellular mass.
- Nucleic acids: Approximately 5 to 7% of total cellular mass.
- Carbohydrates: Approximately 3% of total cellular mass.
- Lipids: Approximately 2% of total cellular mass.
- Ions: Approximately 1% of total cellular mass.

3. **Arrange the Components in Descending Order**:
- Based on the percentages identified:
1. Water (70%)
2. Proteins (10-15%)
3. Nucleic acids (5-7%)
4. Carbohydrates (3%)
5. Lipids (2%)
6. Ions (1%)

4. **Final Arrangement**:
- The correct arrangement of biomolecules in terms of percentage of total cellular mass in descending order is:
- Water > Proteins > Nucleic Acids > Carbohydrates > Lipids > Ions.

5. **Select the Correct Option**:
- Based on the arrangement, the correct answer is option B.