Question

1. what is endocytosis? a. the process of the cell membrane engulfing external material to form a vesicle b. the passive transport of ions across the cell membrane c. the diffusion of water across the cell membrane d. the release of substances from the cell

Explanation:

Endocytosis is a cellular process where the cell membrane engulfs external materials to form a vesicle. It is an active - transport mechanism for bringing substances into the cell.

Answer:

a. The process of the cell membrane engulfing external material to form a vesicle