Question

What is it called when part of the cell membrane closes around a molecule to allow the molecule to enter the cell?

Answer 1

Endocytosis: occurs when a portion of the cell membrane folds in on itself, encircling extracellular fluid and various molecules or microorganisms.

Answer 2

When the cell membrane closes around a molecule to allow the molecule to enter the cell, this process is called “endocytosis.”

Endocytosis is the term for when the cell membrane engulfs (or eats and surrounds) another part so that it can come into the cell.