Question 1

Humoral immunity is mediated by

B cells
T cells
Both 1 and 2
Phagocytes

Answer

Correct Option: A

Question 2

T cell antigen receptors are distinguished from antibodies by which of the following characterstics?

T cell receptors are glycosylated.
T cell receptors must interact with antigen uniquely presented by other cells but not with free antigen.
T cell receptors bind various cytokines.
T cell receptors bind complement to lyse cells.

Answer

Correct Option: B

Question 3

Which of the following statements is true for viruses?

They are obligate intracellular parasites.
They divide by binary fission.
They have their own metabolism.
They contain enzymes for the formation of 16S rRNA.

Answer

Correct Option: A

Question 4

Molecules capable of activating T cells and B cells irrespective of their specificity are called

antigens
mitogens
meiogens
haptens

Answer

Correct Option: B

Question 5

Which of the following statements is true about E.coli?

It is a parasite present in the liver of humans.
It shows syngamy and meiosis.
It exhibits alternation of generation.
It exists symbiotically in the colon of humans.

Answer

Correct Option: D

Question 6

CD3 complex is normally expressed on

B cells
T cells
Granulocytes
NK cells

Answer

Correct Option: B

Question 7

Which of the following organisms causes malignant malaria?

Plasmodium malariae
Plasmodium vivax
Plasmodium ovale
Plasmodium falciparum

Answer

Correct Option: D

Question 8

Which of the following statements is true for cell mediated immunity?

Antigen specific function is the role of the T lymphocytes.
Cell mediated immunity cab activates the complement system.
It is responsible for the delayed hypersensitivity reaction.
G interferon is an important mediator of B cell activation.

Answer

Correct Option: B

Question 9

Which of the following cells are involved in the adaptive immunity, acquired immunity and specific defence?

B cells
T cells
Antigen presenting cells
All of these

Answer

Correct Option: D

Question 10

Which of the following statements are true about virusoid? P. It is a satellite nucleic acid. Q. It is a non-coding molecule. R. It is a ribozyme. S. It is a viroid with capsid.

P and Q
Q and R
P, Q and R
P, Q, R and S

Answer

Correct Option: C

Question 11

At cellular level, which of the following cells are primarily responsible for specificity?

Cytotoxic T cells
Hypervariable regions in domains of B cells
The major histocompatibility complex
Specific T cell receptors

Answer

Correct Option: B

Question 12

A virion is a

naked and infectious piece of RNA
complete and infectious virus particle
nucleic acid without a capsid
a naked and infectious piece of DNA

Answer

Correct Option: B

Question 13

When an animal virus becomes integrated into the host’s chromosome, it is then called

prophage
temperate virus
provirus
coliphage

Answer

Correct Option: C

Question 14

Which of the following is true for allergic reactions?

Arthus reaction is a type IV reaction.
Anaphylaxis occurs in patients who have had no previous exposure to the offending substance.
Contact dermatitis is a type IV reaction.
Positive Mantoux test is a type III reaction.

Answer

Correct Option: C

Question 15

Which of the following is not an advantage of edible vaccine?

Therapeutic proteins are free of pathogens and toxins.
Consistency of dosage form.
Heat stable, eliminating the need for refrigeration.
Seroconversion in the presence of maternal antibodies.

Answer

Correct Option: B

Description: Zoology Parasitology and Immunology - 2
Number of Questions: 15
Created by: Shaka Gupte
Tags: Zoology Parasitology and Immunology - 2 Immunology

Zoology Parasitology and Immunology

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