PATHOLOGY

PATHOLOGY MCQ

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which cells produce antibodies to pathogens?
A
Red blood cells
B
Bacteria
C
lymphocytes
D
phagocytes
Explanation: 

Detailed explanation-1: -A lymphocyte is a type of white blood cell that is part of the immune system. There are two main types of lymphocytes: B cells and T cells. The B cells produce antibodies that are used to attack invading bacteria, viruses, and toxins.

Detailed explanation-2: -Synthesized exclusively by B cells, antibodies are produced in billions of forms, each with a different amino acid sequence and a different antigen-binding site.

Detailed explanation-3: -B lymphocytes, also called B cells, create a type of protein called an antibody. These antibodies bind to pathogens or to foreign substances, such as toxins, to neutralize them. For example, an antibody can bind to a virus, which prevents it from entering a normal cell and causing infection.

Detailed explanation-4: -The B Cells have the ability to transform into plasmocytes and are responsible for producing antibodies (Abs). Thus, humoral immunity depends on the B Cells while cell immunity depends on the T Cells.

Detailed explanation-5: -When lymphocytes identify antigens as not belonging in the body, they produce antibodies against them. This can take a few days, during which time you may feel ill. Antibodies stick to the antigens and make it easier for the other parts of the immune system to identify, destroy and remove infective agents.

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