Question

Antigens areproteins released during an inflammatory response. foreign molecules that trigger the generation of antibodies. foreign molecules that become embedded in B cell membranes. proteins found in the blood that cause foreign blood cells to clump. proteins that consist of two light and two heavy polypeptide chains.

Answer 1

Answer:

The right answer is- foreign molecules that trigger the generation of antibodies.

Explanation:

Antigens are the foreign molecules/substance that when enters into the body initiate an immune response against it. Antigen has antigenic determinants or epitopes on its surface which interacts with receptors present on lymphocytes.  

Then these lymphocytes (B lymphocytes) differentiates into memory B cells and plasma B cell. Plasma B cells secrete antibodies against the antigen which helps in destroying the antigen by making its phagocytosis by phagocytes or by activating the complement system.

Therefore foreign molecule that triggers antibody production by initiating immune response is called antigen.