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MCQ Questions for CBSE Class 12 with Answers
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MCQ Questions for CBSE Class 8 with Answers
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Immunology Class 12 MCQ Questions With Answers
1.
Viruses, like bacteria, can be successfully treated with doctor prescribed antibiotics.
TRUE
FALSE
2.
An organism that enters a life form and causes disease or sickness is a/an:
macrophage
pathogen
vaccine
flu
3.
This gland, located anterior to the heart, but posterior to the sternum, is the lymphatic site where T cells are produced and mature:
tonsils
trachea
thymus
thalamus
4.
All of the following are components of the lymphatic system EXCEPT:
yellow bone marrow
tonsils
spleen
nodes
5.
This reaction may cause sneezing, watery eyes, and cough in response to a foreign substance:
immune response
allergic response
interferon response
None of the above responses are correct
6.
A type of T cell that destroys infected cells is a:
cytotoxic T cell
helper T cell
memory T cell
suppressor T cell
7.
A small injected dose of a pathogen that stimulates the production of antibodies is:
histamine
interferon
pathogen
vaccine
8.
The organism that is infected by a pathogen/antigen is known as the:
survivor
infectee
source
host
9.
Innate and adaptive immunity are the same thing.
TRUE
FALSE
10.
Virus replication may be slowed down by the natural production or administration of this signaling protein:
interferon
histamine
plasma cell
antibodies
11.
A type of cell that "digests" pathogens is known as a/an:
helper T cell
macrophage
suppressor T cell
plasma cell
12.
Signs of an inflammatory reaction include redness, swelling, heat, and itch.
TRUE
FALSE
13.
After an individual is exposed to a microbial infection, the immune system increases its activities. The graph summarises the timeline of the level of those activities. It is reasonable to conclude that
physical barriers include macrophages.
innate immunity lacks involvement of living cells.
lymph nodes are involved in the acquired immunity phase.
the protection developed against the disease ceases at the end of the infection.
14.
In lymph nodes
white blood cells mature into T cells.
lymph drains back into the circulatory system.
old and damaged red blood cells are destroyed.
B and T cells gather and attach to foreign antigens.
15.
White blood cells that are involved in the third line of defence of the immune system include
mast cells.
eosinophils.
lymphocytes.
macrophages.
16.
The diagram shows a bacterial infection within a human. Cells moving from the blood vessel towards the bacteria
are natural killer cells.
would act as phagocytes.
cause vasodilation in the blood vessel.
release histamine in response to tissue damage.
17.
An inflammation reaction involves the
release of histamines.
agglutination of bacteria.
production of immunoglobulin.
vaseconstriction of blood vessels.
18.
Cytotoxic T cells are
antibodies.
able to kill virus-infected cells.
part of the humoral immune response.
part of the second line of the immune defence.
19.
The part of the virus labelled R is its
antigenic marker.
lipid envelope.
protein coat.
viral genome.
20.
One of the similarities between the defence mechanisms of a plant and an animal include the
production of memory cells.
release of immune cells through a circulatory system.
use of an epidermal layer to inhibit the invasion of pathogens.
production of salicylic acid to warn cells of an invading pathogen.
21.
Cellular agents capable of causing infection of body cells include
prions.
toxins.
DNA viruses.
Gram-negative bacteria.
22.
First-line defence mechanisms in humans include
development of fever.
the action of phagocytes.
the use of antibiotics.
the presence of cilia on some cells.
23.
A typical characteristic of such a virus is that it
is destroyed by antibiotics.
releases toxins into the body of the host.
evades detection by the host's immune system.
manipulates the host cell's DNA to produce copies of itself.
24.
The graph shows the antibody levels in the blood after a person has been exposed twice to the same pathogen. With regard to this pathogen we can conclude that
the person has a deficient immune response.
the virulence of the pathogen increased between the first and second exposures.
antibodies are only produced after a second exposure to the pathogen.
memory cells for antibodies against the pathogen exist at the time of the second exposure.
25.
The lymphatic system
controls blood clotting.
contains red blood cells.
has vessels with thick, muscular walls.
contains phagocytic cells.
26.
A young woman stood on a dirty, rusty nail. The diagrams show bacteria isolated from the wound and a range of antibodies that were already present in her body. The microorganism most likely to cause a severe infection is
M.
N.
O.
P.
27.
First-line defences that mammals have against invasion by disease-causing bacteria include
lysozymes.
interferons.
antibodies.
cytotoxic T cell.
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