Immunity MCQs for MDCAT Practice

Biology section, Immunity chapter. Sample questions from past PMC papers.

1. Question 1
   Which of the following diseases can be prevented through vaccination?
   • A.AIDS and Cancer
   • B.Malaria and AIDS
   • C.Typhoid and Cancer
   • D.Measles and Mumps
   Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.
2. Question 2
   Pathogens inside the body are killed by:
   • A.Antibodies
   • B.Immune system Cells
   • C.Interferon
   • D.All of these
   Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.
3. Question 3
   In case of snake bite venom, passive immunity is produced by antitoxins, so the serum is called:
   • A.Antivenom serum
   • B.Antiserum
   • C.Passive immunity serum
   • D.Anti snake serum
   Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.
4. Question 4
   B.C.G vaccines are usually given to:
   • A.Children
   • B.Adults
   • C.Special populations
   • D.All of the above
   Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.
5. Question 5
   ___________ are Y-shaped proteins that circulate through blood stream and bind to specific antigens thereby attacking microbes:
   • A.Haemoglobin
   • B.Antibodies
   • C.Interferons
   • D.Myoglobin
   Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.
6. Question 6
   If you suspect a major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?
   • A.Haemocytes
   • B.Serum globulins
   • C.Fibrinogen in plasma
   • D.Serum albumins
   Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.
7. Question 7
   Discriminate between normal health and diseases.
   • A.Normal health is the ability to perform daily activities, while disease is the inability to do so.
   • B.Normal health is the absence of disease, while disease is the presence of pathogens in the body.
   • C.Normal health is a state of complete physical well-being, while disease is a state of mental illness only.
   • D.Normal health is the absence of all symptoms, while disease is the presence of any symptom.
   Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.
8. Question 8
   In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self cells, then it leads to:
   • A.Autoimmune disease
   • B.Active immunity
   • C.Allergic response
   • D.Graft rejection
   Sign up free to see the explanation, distractor analysis, and add this to your spaced repetition deck.