Question

Indicate whether each of the following descriptions better applies to COPI- (1), COPII- (2), or clathrin- (3) coated vesicles. Your answer would be a four-digit number composed of digits 1 to 3 only, e.g. 1322.

1 They mediate transport from the ER to the cis Golgi network.
2 Their coat protein forms a three-legged structure called a triskelion.
3 They are pinched off from their donor compartment by a dynamin collar.
4 They are involved in retrograde transport in the Golgi apparatus.

Answer 1

COPI- coated vesicles mediate transport from the ER to the cis Golgi network, while clathrin-coated vesicles are involved in retrograde transport in the Golgi apparatus.

Step-by-step explanation:

1: COPI-
2: COPII-
3: clathrin-
4: COPI-

COPI- coated vesicles mediate transport from the ER to the cis Golgi network. Clathrin-coated vesicles are formed by coat proteins that form a three-legged structure called a triskelion. They are pinched off from their donor compartment by a dynamin collar. COPI- coated vesicles are involved in retrograde transport in the Golgi apparatus.