PATHOLOGY

PATHOLOGY MCQ

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
) Infection by a bacterium that has elements on its surface that enhance its resistance to lysozyme will likely result in
A
destruction of the bacterium by NK cells.
B
successful reproduction of the bacterium and continued progression of the disease.
C
removal of the bacterium by dendritic cells and its concentration in lymph nodes
D
the infected individual’s humoral immunity becoming the only route of infection response.
Explanation: 

Detailed explanation-1: -We now know that lysozyme causes bacterial cell lysis via targeted hydrolysis of bacterial cell walls, which are critical for the resistance of bacteria to osmotic stress.

Detailed explanation-2: -The antibacterial action of lysozyme is particularly efficient against Gram-positive bacteria because of its ability to hydrolyze the -1, 4-glycosidic bond present in the polysaccharide layer of these bacteria cell walls.

Detailed explanation-3: -Antibodies produced by the immune system attach to the bacteria and help in their destruction. They may also inactivate toxins produced by particular pathogens, for example tetanus and diphtheria.

Detailed explanation-4: -Immunology is the study of the immune system in a diversity of organisms. Microbiology and Immunology go hand in hand, as microbes that cause disease trigger an immune response and manipulate the immune system during infection.

There is 1 question to complete.