Which of the following best describes how the structure of the fluid mosaic model of the cell membrane controls the movement of substances in and out of the cell? (3 points) It contains enzymes, which are layered around the membrane and facilitate endocytosis.
It has embedded water-soluble peripheral proteins, which facilitate exocytosis of cellular waste.
It is amphipathic, allowing polar and nonpolar substances to easily enter and leave by diffusion.
It is selectively permeable, allowing some molecules to enter and leave more easily than others.