`1mm^(3)` blood has how many blood platelets?

Options

A. 150000 - 350000
B. 1.5 million to 3.5 million
C. 1500 - 3000
D. 10 to 15 lacs

Answer

To determine how many blood platelets are present in 1 mm³ of blood, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to find out the number of blood platelets in a volume of 1 mm³ of blood.

2. **Know the Normal Range**: The normal range for the number of blood platelets in human blood is approximately between 150,000 to 350,000 platelets per mm³.

3. **Identify the Range**: This means that in every cubic millimeter (1 mm³) of blood, there can be anywhere from 150,000 to 350,000 platelets.

4. **Conclusion**: Therefore, in 1 mm³ of blood, the number of platelets can be stated as:
- Minimum: 150,000 platelets
- Maximum: 350,000 platelets

5. **Final Answer**: The answer to the question is that 1 mm³ of blood contains approximately between 150,000 to 350,000 blood platelets.