Which three of the statements are true? a) amphipathic (amphiphilic) lipids are the structural basis of biological bilayer membranes. b) 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. c) hydrophobic molecules are individually hydrated in water, increasing the entropy of the system. d) the tendency of water to minimize its contact with nonpolar substances is called the hydrophobic effect. e) nonpolar molecules are capable of forming micelles.

A, B, D.

Explanation:

(A) Amphipathic lipids: All lipids are amphipathic in nature with their hydrophobic non-polar and hydrophilic polar portion located at separate parts of each molecule. So the results, the lipid components of the membrane are arranged in a continuous biomolecular leaflet which is known as biological bilayer membrane.

(B) Hydrophobic molecules: Their groups are not precisely bonded with each other, but they're held together because of a repulsion from water. They are functioning because hydrophobic groups clump together. So, they don't break the hydrogen bonds in the surrounding water.

(D) Hydrophobic effect: It is an observed tendency of nonpolar molecules to exclude water molecules and aggregate in an aqueous solution. Hydrophobic describe as a segregation of non-polar substances and water which helping in to maximize hydrogen bonding between molecule of water and minimize the area of contact between nonpolar molecule and water.