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Which three of the following statements are true? Forming an ordered network of

ID: 530959 • Letter: W

Question

Which three of the following statements are true?

Forming an ordered network of water around hydrophobic molecules increases the entropy of water.

Nonpolar molecules that have no polar groups (e.g. hydrocarbons) can readily form micelles.

Placing a hydrophobic molecule into water disrupts some of the water-water hydrogen bonds.

The tendency of hydrophobic molecules to aggregate in water is called the hydrophobic effect.

The bilayer of a cellular membrane is primarily composed of amphipathic (amphiphilic) lipids.

Explanation / Answer

Statements 3 ,4, and 5 are true.

Entropy is tthe degree of randomness or disorderness of a system , so forming a ordered network will decrease the entropy of water.

And the molecules that lack polar groups cannot readily form micelles as it is the polarity that orients the hydrocarbon chain into micelles , so without the polar groups , it would be difficult.