Question

What is the main feature of chemotaxis as observed in white blood cells ?

• A. Increased random movement of neutrophils
• B. Increased adhesiveness to intima
• C. Increased phagocytosis
• D. Unidirectional locomotion of neutrophils

Answer 1

The Correct Option is D

Chemotaxis is a crucial process observed in immune responses, where white blood cells, specifically neutrophils, respond to chemical signals in their environment. This process involves certain distinct characteristics:

The main feature of chemotaxis is the unidirectional locomotion of neutrophils. Upon detection of chemoattractants, which are chemical signals released from sites of tissue damage or infection, neutrophils move directionally toward the higher concentration of these signals. This guided movement is essential for efficient immune response and plays a key role in identifying and eliminating pathogens.

Other options like increased random movement, adhesiveness to intima, or increased phagocytosis are not defining characteristics of chemotaxis. Instead, chemotaxis specifically refers to the directional movement towards chemical stimuli.