Question

Which three of the statements are true?

A. Amphipathic (amphiphilic) lipids are the structural basis of biological bilayer membranes.
B. The tendency of water to minimize its contact with nonpolar substances is called the hydrophobic effect.
C. Hydrophobic molecules are individually hydrated in water, increasing the entropy of the system.
D. Hydrophobic molecules clump together in water because fewer water molecules are required to surround them, which results in a smaller decrease in entropy than if the molecules were individually hydrated.
E. Nonpolar molecules are capable of forming micelles.

Answer 1

The three of the statements which are true includes A,B,and D.

A. Amphipathic (amphiphilic) lipids are the structural basis of biological bilayer membranes.

B. The tendency of water to minimize its contact with nonpolar substances is called the hydrophobic effect.

D.Hydrophobic molecules clump together in water because fewer water molecules are required to surround them, which results in a smaller decrease in entropy than if the molecules were individually hydrated.

Explanation: option E is wrong because micelles are formed by amphipathic molecules like Lipids not non polar molecules. Option C is wrong because water molecules involved in hydration cannot participate in normal hydrogen bonding with one another.

Answer 2

Answer : A, B and D

Step-by-step explanation:

Amphipathic lipids are lipids that have bothe polar and non-polar parts or end. The polar part is the part which is described as hydrophilic i.e water loving, while the non-polar part is described as hydrophobic, meaning water fearing.

Most or all hydrophobic molecules clump together in water in order to prevent water from surrounding the molecules. This means that, they do not break the hydrogen bond in the water. This is known as hydrophobic effect.

In this case, it will be discovered or concluded that, the three options, A, B and D, are the statements that are considered to be true.