MCQ practice · SSC Biology Board questions · Chapter 6: Transport in Organisms
What percent of plasma is water?
Think it through first, then pick an option.
- a 80-82
- b 85-87
- c 88-90
- d 91-92
Answer and explanation
Correct answer: d 91-92
About 91-92 percent of plasma is water (an exam fact beyond the book).
Why the other options are wrong
- a 80-82: 80-82 is too low; the board figure is 91-92.
- b 85-87: 85-87 would leave 13-15 percent solids, which clashes with the 8-9 percent.
- c 88-90: 88-90 would leave 10-12 percent solids, which clashes with the 8-9 percent.
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