PATHOLOGY

PATHOLOGY MCQ

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Enzyme in saliva and tears that kills certain kinds of bacteria.
A
histamine
B
lysozyme
C
cytokines
D
basophil
Explanation: 

Detailed explanation-1: -Lysozyme is an enzyme that breaks down bacterial cell walls and provides protection against bacterial invasion in the skin, mucus membrane and many body fluids. It is found in tears, sweat and saliva.

Detailed explanation-2: -Lysozyme is a naturally occurring enzyme found in bodily secretions such as tears, saliva, and milk.

Detailed explanation-3: -Lysozyme is an enzyme found in tears and saliva that has powerful digestive capabilities, and can break down foreign agents to a harmless status before they enter the body. The clotting of blood near open wounds prevents an open space for antigens to easily enter the organism by coagulating the blood.

Detailed explanation-4: -As an important part of the nonspecific immune defense mechanism, lysozyme is an important component of antibacterial in saliva. It participates in the host nonimmune defense against bacteria, maintaining the steady state equilibrium of the oral cavity environment.

Detailed explanation-5: -A. Lysozyme present in saliva and tears kills viruses by destroying their cell walls.

There is 1 question to complete.