Question

A B-cell uses its surface antibodies as receptors to attach to specific antigens before they are taken in. By what mechanism does a B cell engulf an antigen

Answer 1

`\huge\boxed{\sf Endocytosis}`

Step-by-step explanation:

B-cells engulf an antigen by endocytosis.

Endocytosis:

The process by which cell takes up external materials by fusing them with plasma membrane is called endocytosis.

After engulfing the antigen, B-cells become sensitive to the pathogen.

`\rule[225]{225}{2}`

Hope this helped!

~AH1807