NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Once a microbe has entered a host, what process performed by certain white blood cells will attempt to destroy the microbes?
A
phagocytosis.
B
adhesion.
C
encapsulation.
D
exocytosis.
Explanation: 

Detailed explanation-1: -The process where these white blood cells surround, engulf, and destroy foreign substances is called phagocytosis, and the cells are collectively referred to as phagocytes.

Detailed explanation-2: -The chemicals also attract white blood cells called phagocytes that “eat” germs and dead or damaged cells. This process is called phagocytosis. Phagocytes eventually die.

Detailed explanation-3: -Phagocytes release digestive enzymes which break down the trapped microbes before they can do any harm. This process is called phagocytosis.

Detailed explanation-4: -Phagocytes are a type of white blood cell that use phagocytosis to engulf bacteria, foreign particles, and dying cells to protect the body. They bind to pathogens and internalise them in a phagosome, which acidifies and fuses with lysosomes in order to destroy the contents.

Detailed explanation-5: -Phagocytes degrade pathogens through phagocytosis, which involves engulfing the pathogen, killing and digesting it within a phagolysosome, and then excreting undigested matter.

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