A) protein molecules that perform important cellular functions float in a lipid bilayer.
B) there is a double protein layer in the plasma membrane.
C) there are fats floating in the protein layer.
D) carbohydrates function as membrane channels.
E) nonpolar ends of phospholipids are exposed to water inside and outside the cell.

A) Action potentials would no longer be generated.
B) Cells would be isotonic to their environment.
C) You would be subject to a higher rate of illness and disease.
D) Cells would not be able to get and keep enough glucose to function.
E) All of these choices are plausible.

A) have a phosphate-containing end that is nonpolar.
B) have a fatty acid end that is polar.
C) are arranged in a double layer in the cell membrane.
D) are not found in the cell membrane.
E) have all of these characteristics.