Biology Multiple Choice Questions and Answers for Different Competitive Exams

Multiple Choice Questions on Immunology - Antigens

Antigen

1. Any substance or molecules that interact with antibodies are called
a) antigens
b) antibodies
c) epitope
d) immunogens
2. Antigens can be
a) proteins
b) carbohydrates
c) nucleic acids
d) all of these
3. Any molecule that induces or elicits an immune response are
a) antigens
b) antibodies
c) epitope
d) immunogens
4. Majority of antigens are
a) proteins
b) carbohydrates
c) nucleic acids
d) lipids
5. A molecule that reacts with specific antibody but is not immunogenic by itself is called
a) carrier
b) antigen
c) hapten
d) immunogen
6. Haptens are immunogenic upon binding covalently to a carrier protein
a) covalently to a carrier protein.
b) covalently to an antibody
c) covalently to a paratope
d) none of these
7. Haptens cannot activate T cell or B cells due to
a) its low molecular weight antigens arbuscules
b) its inability to bind to MHC
c) both a and b
d) none of these
8. A complete antigen is capable of
a) inducing an immune response
b) can interact with antibody
c) induces antibody production
d) all of these
9. Which of the following is a hapten
a) Cyanide
b) paracetamol
c) Penicillin
d) none of these
10. An incomplete antigens
a) are also called as haptens
b) are immunogenic upon binding covalently to a carrier protein
c) cannot induce antibody production by itself
d)all of the above
Learn more: Immunology NotesImmunology MCQs
Answers
1. a) antigens
2. d) all of these
3. d) immunogens
4. a) proteins
5. c) hapten
6. a) covalently to a carrier protein.
7. c) both a and b
8. d) all of these
9. c) Penicillin
10. d)all of the above

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