Question

Which of the following is not a component of nonspecific defense? (A) Mucous membrane (B) Phagocutosis (C) Lusozome (D) Killer T-cells

Answer 1

The correct answer is (D) Killer T-cells.

Killer T-cells are a component of the specific immune response, which is also called adaptive immunity. The nonspecific defense, also known as innate immunity, includes physical and chemical barriers, such as the skin, mucous membranes, and lysozymes. Phagocytosis is also a part of innate immunity, where specialized cells such as macrophages and neutrophils engulf and digest foreign particles. Lysozymes are enzymes that break down bacterial cell walls and are found in various bodily fluids, including tears and saliva.