Which of these cannot cross the plasma membrane using channels and carriers but must instead cross by endocytosis or exocytosis? A) proteins B) ions, such as K⁺ C) water D) urea E) sugars, such as glucose

Question

Quizplus · Accepted Answer

Proteins are typically too large to pass through channels or carriers in the plasma membrane and must be transported via endocytosis or exocytosis.

Which of These Cannot Cross the Plasma Membrane Using Channels