What are antibodies?

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Multiple Choice

What are antibodies?

Antibodies are special proteins made by the immune system in response to bacteria, viruses, or other antigenic substances. These immunoglobulins are produced by B cells that become plasma cells and release antibodies into the bloodstream and tissues. Their main job is to recognize specific antigens, bind to them, neutralize the invader, and mark it for attack by other parts of the immune system. This targeting helps prevent infection and supports the overall immune response. The other descriptions don’t fit antibodies: enzymes in the stomach that digest proteins (like pepsin) break down food, red blood cells carry oxygen, and pituitary hormones regulate various body functions.

Antibodies are special proteins made by the immune system in response to bacteria, viruses, or other antigenic substances. These immunoglobulins are produced by B cells that become plasma cells and release antibodies into the bloodstream and tissues. Their main job is to recognize specific antigens, bind to them, neutralize the invader, and mark it for attack by other parts of the immune system. This targeting helps prevent infection and supports the overall immune response.

The other descriptions don’t fit antibodies: enzymes in the stomach that digest proteins (like pepsin) break down food, red blood cells carry oxygen, and pituitary hormones regulate various body functions.

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