To determine whether the statement "The average adult has a blood volume of about 5 ml, of which 2.7-3 ml is plasma" is true or false, let's break it down step-by-step.
1. Average Adult Blood Volume:
- The statement asserts that the average adult has a blood volume of about 5 ml.
2. Plasma Volume Range:
- The statement specifies that of the 5 ml of blood, between 2.7 ml and 3 ml is plasma.
3. Evaluating the Statement:
- To verify, we need to check if the range 2.7 ml to 3 ml can logically fall within the total blood volume of 5 ml.
- However, if we compare the range 2.7 - 3 ml to the actual total blood volume of 5 ml, we observe that this represents over half of the total blood volume.
4. Conclusion:
- The statement that 2.7-3 ml out of 5 ml is plasma means that the entire plasma volume would have to fit within the given blood volume.
- Upon analyzing the provided information, we find that 5 ml covers the entire blood volume, and the statement asking if between 2.7 ml and 3 ml is specifically plasma seems plausible.
Given the logical assessment of the provided data, the statement leans towards misrepresenting the proportion of plasma accurately in the context of adult average blood volume. Therefore, the statement is:
False
The correct answer is: B. False
