The percentage of blood plasma and cells respectively are  

Options

A. 40%, 60%
B. 45%, 55%
C. 55%, 45%
D. 60%, 45%

Answer

To answer the question regarding the percentage of blood plasma and cells respectively, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Blood Composition**: Blood is composed of two main components: blood plasma and blood cells. Blood plasma is the liquid portion, while blood cells include red blood cells, white blood cells, and platelets.

2. **Identifying Blood Plasma**: Blood plasma is a light yellow liquid that makes up a significant portion of blood. It contains water, electrolytes, proteins, hormones, and waste products.

3. **Determining the Percentage of Blood Plasma**: Blood plasma typically accounts for about 55% of the total blood volume.

4. **Determining the Percentage of Blood Cells**: The remaining portion of blood is made up of blood cells, which include red blood cells, white blood cells, and platelets. This accounts for about 45% of the total blood volume.

5. **Conclusion**: Therefore, the percentages of blood plasma and blood cells respectively are approximately 55% and 45%.

### Final Answer:
The percentage of blood plasma and cells respectively are approximately 55% and 45%.

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