Question

Antibodies are made by ______.

1) red blood cells
2) macrophages
3) B cells/plasma cells
4) T cells

Answer 1

Antibodies are produced by B cells, which are immune cells that function primarily by producing antibodies.

Step-by-step explanation:

B Cells: B cells are immune cells that function primarily by producing antibodies. An antibody is any of the group of proteins that binds specifically to pathogen-associated molecules known as antigens.

Once activated by binding to antigen, B cells differentiate into cells that secrete a soluble form of their surface antibodies. These activated B cells are known as plasma cells.