Blood plasma consists of 8-10 per cent of solutes, in which proteins contribute

Options

A. 6-8 per cent
B. 8-10 per cent
C. 4-5 per cent
D. 2-3 per cent

Answer

To solve the question regarding the percentage of proteins in blood plasma, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Blood Composition**: Blood is composed of two main components: plasma and formed elements. Plasma makes up about 55% of the total blood volume, while formed elements (which include red blood cells, white blood cells, and platelets) make up about 45%.

2. **Identify Plasma Composition**: Plasma itself is primarily made up of water (approximately 90%) and solutes (approximately 10%). The solutes include proteins, electrolytes, nutrients, hormones, and waste products.

3. **Focus on Protein Content**: The question specifically asks about the protein content in plasma. According to biological data, proteins in blood plasma typically account for about 6 to 8% of the total plasma volume.

4. **Evaluate the Options**: The options provided are:
- Option 1: 6 to 8%
- Option 2: 8 to 10%
- Option 3: 4 to 5%
- Option 4: 2 to 3%

Based on the information we have, the correct range for protein content in plasma is 6 to 8%.

5. **Select the Correct Answer**: Therefore, the correct answer to the question is **Option 1: 6 to 8%**.

### Final Answer:
Blood plasma consists of 6 to 8% of proteins.

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