試題詳解

(1) Clathrin forms the triskelion structure for the polymerization of a polygonal lattice.

(2) The acidic pH of endosomes causes receptor-ligand complexes to dissociate. The best example to describe the phenomenon is the endocytosis of transferrin receptor.

(3) Transmission of nerve impulses at chemical synapses depends on the exocytosis of neurotransmitter-filled synaptic vesicles.
(A) I and 2
(B) 2 and 3
(C) 1 and 3
(D) 3 only
(E) All of above are correct.