1Biologyaids
Numerous opportunistic diseases might attack a persone suffering from which of the following disease?
- A.Measles
- B.Influenza
- C.Hepatitits A
- D.AIDS
Answer and explanation locked
Immunity MCQs for MDCAT
4 Immunity questions from real MDCAT past papers (2020), each with the correct answer and a written explanation.
4 questionsBiology
Practice questions
4 more questions in this chapter
Unlock the full answer key and explanations
Get every question in Immunity MCQs - plus every other paper, unlimited full-length mocks, and the most-repeated MCQ packs.
Or buy a single mock test for Rs 300 without a subscription.
2Biologylymphocytes
The cells which play very important in developing immunity are
- A.Monocytes
- B.Neutrophils
- C.Lymphocytes
- D.Thrombocytes
Answer and explanation locked
3Biologyautoimmunity
Autoimmune disease act at the principle of
- A.Self against antigens
- B.Antigens against self
- C.Self against self
- D.Antigens self-dstroyed
Answer and explanation locked
4Biologyantibodies
Antibodies are manufactured in
- A.T lymphocytes
- B.Red blood cells
- C.Platelets
- D.B lymphocytes
Answer and explanation locked
How Immunity is examined
Immunity sits in the official PMDC Biology curriculum, the document that defines what can and cannot appear in the 2026 paper. Everything on this page is tagged against that curriculum rather than against a chapter list invented for a website, which is why a chapter here matches the chapter your textbook and your teacher use.
Biology carries 81 of the 180 questions in the real paper - 45% of your MDCAT score, and the MDCAT is half your merit aggregate. PMDC does not publish how those 81questions are split across chapters, so no honest page can tell you “expect four from Immunity”. What the archive can tell you is what actually appeared: 4 Immunity questions out of the 77 Biology questions digitised so far.
Work through them with the explanations rather than checking answer letters. The explanation says why the other three options are wrong, and distractors get reused across years far more reliably than whole questions do.
Frequently asked questions
How many Immunity MCQs are on this page?
4, drawn from one past paper - the 2020 paper. Every one is transcribed from the real paper rather than written to look like a past paper question, and each carries the correct answer with a written explanation. 0 of them are readable in full without an account.
Is Immunity in the MDCAT 2026 syllabus?
Yes. Immunity is a chapter of the official PMDC Biology curriculum, and PMDC has confirmed the 2026 syllabus is unchanged from the 2025 revision, so everything on this page is still examinable.
How many Immunity questions come up in the MDCAT?
PMDC does not publish a per-chapter breakdown, so nobody can tell you a reliable number - be careful with pages that do. What can be counted is the paper as a whole: Biology is 81 of the 180 questions, and 5% of the Biology questions in our archive so far have come from Immunity.
Do these Immunity MCQs come with explanations?
Yes, and they are written from scratch rather than copied. An answer letter tells you nothing about why the other three options are wrong, which is the part that transfers to the next question. The first 0 questions of every paper are free to read in full; the rest need a pass.