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Human Anatomy & Physiology Mcqs

Q:

Virus envelope is known as ________

A) Core B) Capsid
C) Virion D) Nucleoprotein
 
Answer & Explanation Answer: B) Capsid

Explanation: Virus envelope is known as the capsid. It is a protein shell of a virus. It consists of several oligomeric structural subunits made of proteins called protomers.

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Q:

Aedes mosquito is a vector for transmitting ______

A) Malaria B) Cholera
C) Dengue D) Fever
 
Answer & Explanation Answer: C) Dengue

Explanation: Dengue is a mosquito borne disease. It is caused by Aedes mosquito. It is a viral disease.

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64
Q:

Aflatoxins are produced by _________

A) Bacteria B) Virus
C) Fungus D) Nematode
 
Answer & Explanation Answer: C) Fungus

Explanation: Aflatoxins are produced by a fungus. Aflatoxins are poisonous carcinogens that are produced by some molds which grow in soil, decaying vegetation, hay and grains.

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30
Q:

Passive immunity can be obtained by injecting _________

A) Antibodies B) Antigen
C) Vaccination D) Antibiotics
 
Answer & Explanation Answer: A) Antibodies

Explanation: Passive immunity is the transfer of active humoral immunity in the form of readymade antibodies. Passive immunity can occur naturally when maternal antibodies are transferred to the fetus through placenta and it can also be induced artificially.

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33
Q:

BCG vaccine is to prevent ____________

A) AIDS B) TB
C) Cholera D) Typhoid
 
Answer & Explanation Answer: B) TB

Explanation: BCG vaccine is to prevent tuberculosis. BCG stands for Bacillus Calamitte Guerin.

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Q:

Antigens are present ___________

A) On cell surface B) On n nuclear membrane
C) Inside cytoplasm D) Inside nucleus
 
Answer & Explanation Answer: A) On cell surface

Explanation: Antigens are a toxic or foreign substance which induces an immune response in the body especially the production of antibody. Antigens are present on the surface of the cell.

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35
Q:

Which immunoglobulin is the largest in size?

A) Ig A B) Ig D
C) Ig E D) Ig M
 
Answer & Explanation Answer: D) Ig M

Explanation: Ig M is the largest immunoglobulin in size. It is the first antibody to appear in the response to initial exposure to an antigen.

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34
Q:

The organism which carries a disease from one organism to another is called _________

A) Agent B) Host
C) Parasite D) Vector
 
Answer & Explanation Answer: D) Vector

Explanation: An organism that transmits a disease or parasite from one animal or plant to another is known as a vector.

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