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Multiple Choice

Proteins produced by lymphocytes to neutralize pathogens are called what?

Antibodies are the proteins produced by B lymphocytes that neutralize pathogens. They are immunoglobulins that recognize specific antigens on invaders, bind to them, and block infection or mark the pathogens for attack by other immune cells or the complement system. This focused, targeted defense is the hallmark of the adaptive immune response. Hormones are signaling molecules from glands, not primary defenders produced by lymphocytes. Enzymes are proteins that speed up chemical reactions and may be produced by many cells, but they don’t specifically neutralize pathogens. Lipids are fats and do not function as antibodies.

Antibodies are the proteins produced by B lymphocytes that neutralize pathogens. They are immunoglobulins that recognize specific antigens on invaders, bind to them, and block infection or mark the pathogens for attack by other immune cells or the complement system. This focused, targeted defense is the hallmark of the adaptive immune response.

Hormones are signaling molecules from glands, not primary defenders produced by lymphocytes. Enzymes are proteins that speed up chemical reactions and may be produced by many cells, but they don’t specifically neutralize pathogens. Lipids are fats and do not function as antibodies.