What Accounts for the Fluidity That Defines the Fluid Mosaic

question 89

Multiple Choice

What accounts for the fluidity that defines the fluid mosaic model of a typical plasma membrane?

• A) The proteins, being large, cause the membrane to jiggle around.
• B) The phospholipids collectively form a jellylike substance similar to the cytoplasm.
• C) The phospholipids are not bonded to each other and thus are freer to move around.
• D) Water molecules infiltrate the bilayer causing it to become more watery and thus more fluid.
• E) The phospholipids in a typical plasma membrane form covalent bonds, which are elastic and allow the membrane to stretch.

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