GENERAL HISTOLOGY

LYMPHATIC

LYMPHATIC SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Lysozyme is an enzyme that
A
inhibits viruses
B
lyses host cells
C
stimulates the immune system
D
is an antibacterial substance
Explanation: 

Detailed explanation-1: -Lysozyme is the one of the most abundant antimicrobial proteins in the airways with concentrations estimated at 0.1 to 1 mg/mL, which is sufficient to kill important pulmonary pathogens such as S. aureus and P. aeruginosa.

Detailed explanation-2: -This hydrolysis in turn compromises the integrity of bacterial cell walls causing lysis of the bacteria. Lysozyme is abundant in secretions including tears, saliva, human milk, and mucus. It is also present in cytoplasmic granules of the macrophages and the polymorphonuclear neutrophils (PMNs).

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