Which of the following is true regarding receptor-mediated endocytosis?
A) Vesicles transport receptors back to the plasma membrane.
B) A ligand binds specifically with a receptor on the extracellular surface of the plasma membrane.
C) Some transport vesicles fuse with a lysosome, which essentially breaks down the contents.
D) all of these choices

Question

Quizplus · Accepted Answer

Receptor-mediated endocytosis involves the specific binding of ligands to receptors on the extracellular surface of the plasma membrane. The ligand-receptor complex then triggers the formation of coated pits, which invaginate to form coated vesicles. These vesicles transport the ligands and receptors to the interior of the cell. Some of these transport vesicles eventually fuse with lysosomes, which break down the contents. The receptors are then transported back to the plasma membrane for recycling or degradation. Therefore, all of the choices are true regarding receptor-mediated endocytosis.

Which of the Following Is True Regarding Receptor-Mediated Endocytosis