IMMUNOLOGY

Detailed explanation-1: -Antigens are markers that tell your body that something is foreign. Your immune cells make antibodies to recognize and destroy harmful antigens.

Detailed explanation-2: -Antibodies are protective proteins produced by your immune system. They attach to antigens (foreign substances)-such as bacteria, fungi, viruses and toxins-and remove them from your body.

Detailed explanation-3: -Antibodies are compounds of protein and sugar that circulate in the bloodstream. They are created by the immune system to fight germs and foreign substances. Antibodies can quickly detect germs and other potentially harmful substances, and then attach to them.

Detailed explanation-4: -In the context of immunity, foreign proteins are collectively known as antigens. The base of the Y is shared by all IgG antibodies. It’s called the Fc region because it binds the Fc receptors found on various immune cells in order to trigger a broader attack against the foreign threats recognized by antibodies.