Because water is a polar molecule, it makes an excellent solvent for atoms and compounds found within cells and tissues. water, acting as a solvent in organisms, aids in all of the following except a. eliminating wastes. b. maintaining turgor pressure. c. constructing cell membranes. d. supplying oxygen and nutrients to cells.

The correct answer is option C- constructing cell membranes.

Explanation:

Life cannot exist without the presence of water as life evolved in the water itself. When life moved from water to land, organisms evolved mechanisms to maintain the water content which organism perform even today. This happens because:

1. Maintain the turgor pressure of the cell through osmosis which controls many important functions in a cell like opening and closing of stomata.

2. Waste elimination- about 95% of urine is water.

3. Supplying oxygen and nutrients- as blood constitutes 55% blood plasma of which 92 % is water.

But the cell membrane or plasma membrane is hydrophobic in composition which separates the internal material from the aqueous environment outside.

Thus, option C- constructing cell membranes is the correct answer.

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