Roughly what fraction of the cytoplasm is water?
A10 to 20 percent
B30 to 40 percent
C70 to 80 percent
D95 to 99 percent
Answer & Solution
Correct answer: C. 70 to 80 percent
1. Cytoplasm is the jelly-like material filling the cell outside the nucleus.
2. It is mostly water, but not entirely.
3. The cytoplasm consists of 70 to 80 percent water.
4. Its semi-solid consistency comes from the proteins dissolved within it.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 4 'Cell Structure', sections 4.1-4.6_
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