Question

A critical feature of the plasma membrane is that it is selectively permeable. This allows the plasma membrane to regulate transport across cellular boundaries--a function essential to any cell's existence. How does phospholipid structure prevent certain molecules from crossing the plasma membrane freely?

Answer 1

Answer:

receptors selectivity

Explanation:

there are certain receptors and proteins which are species soecific

Answer 2

Answer:

One feature of phospholipids is that when they are placed in an aqueous solution, they will self-assemble into a double layer (bilayer) that resembles the bilayer of the plasma membrane. ... This allows the plasma membrane to regulate transport across cellular boundaries--a function essential to any cell's existence.