Complement is the name used to describe a group of protein enzymes normally pres

Question

Complement is the name used to describe a group of protein enzymes normally present, but in an inactive state, in blood. When activated, they are specialized protein molecules that target foreign cells, such as bacteria, for destruction. How do complement protein enzymes destroy harmful cells?

“drilling” a hole in the cell membrane

causing sodium to rapidly rush out of the cell

causing water to rapidly rush out of the cell

phagocytosis

“drilling” a hole in the cell membrane

causing sodium to rapidly rush out of the cell

causing water to rapidly rush out of the cell

phagocytosis

Explanation / Answer

Complement system is very important immunity mechanism in our body. There are a group of protein enzymes circulating in blood, synthesized by liver and present in inactive form. When they are triggered, cytokinins are released. This completes the activation of protein molecules.

After activation, phagocytes are stimulated which undergo the process of Phagocytosis.

Phagocytosis is the process by which phagocytes engulfs the harmul cells.

Hence, Option D) Phagocytosis

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