Which of the following is true about the lipids that compose the cell membrane?
A) The "heads" are in contact with extracellular and intracellular fluid and the "tails" are oriented away from these fluids.
B) The "tails" are in contact with extracellular and intracellular fluid and the "heads" are oriented away from these fluids.
C) Half of all "heads" and "tails" are in contact with extracellular fluid.
D) Both "heads" and "tails" are in contact with intracellular fluid.
Correct Answer:
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