NEET BIOLOGY

Detailed explanation-1: -Phagocytosis is a process wherein a cell binds to the item it wants to engulf on the cell surface and draws the item inward while engulfing around it. The process of phagocytosis often happens when the cell is trying to destroy something, like a virus or an infected cell, and is often used by immune system cells.

Detailed explanation-2: -If pathogens do manage to enter the body, the body’s second line of defense attacks them. The second line of defense includes inflammation, phagocytosis, and fever.

Detailed explanation-3: -The second line of defense is nonspecific resistance that destroys invaders in a generalized way without targeting specific individuals: Phagocytic cells ingest and destroy all microbes that pass into body tissues.

Detailed explanation-4: -The second line of defence is a group of cells, tissues and organs that work together to protect the body. This is the immune system.

Detailed explanation-5: -Phagocytosis can be divided into four main steps: (i) recognition of the target particle, (ii) signaling to activate the internalization machinery, (iii) phagosome formation, and (iv) phagolysosome maturation.