MDCAT 2025
180 questions, every answer verified. Free to try.
When the official key is wrong, we say so.
Every answer here is checked against the official key published for that paper. Where the key and the subject disagree — and on some papers that happens dozens of times — we mark the answer the science supports, and the explanation on that question says plainly that we have departed from the key and why. One paper's published key turned out to belong to a different paper code entirely.
Where a question cannot be resolved at all — an unreadable scan, a missing diagram, an option the original paper never printed — we switch it off rather than guess, and the paper's own note tells you how many are missing and which. That is why a paper can read 218 of 220 instead of a tidy 100%: the number is the truth about the paper, not a target.
What the MDCAT 2025 paper tested
The 2025 paper had 180 questions across 5 subjects. Biology was the largest section, with 81 questions over 14 topics. The most-tested topics in each subject are below. Each one links to its syllabus page, with the subtopics and more past-paper questions.
Logical Reasoning · 9 Qs
Biology · 81 Qs
Chemistry · 45 Qs
Physics · 36 Qs
English · 9 Qs
Sample questions from MDCAT 2025
Three questions from the 2025 paper. Try each before opening the answer, then sit the full paper above for a score.
- Q1 · MDCAT 2025 · Homeostasis
Kidneys perform their osmoregulatory role under the effect of Antidiuretic Hormone. Which type of urine is produced in this situation?
- A.Hypotonic urine with decreased volume
- B.Hypotonic urine with increased volume
- C.Hypertonic urine with decreased volume
- D.Hypertonic urine with increased volume
Show answer
Answer: C. Hypertonic urine with decreased volume — ADH makes the kidney produce hypertonic urine of decreased volume.
- Q2 · MDCAT 2025 · Gases
Value of R (gas constant) in J mol⁻¹ K⁻¹ is
- A.8.314
- B.62.4
- C.0.821
- D.62400
Show answer
Answer: A. 8.314 — The gas constant R = 8.314 J mol⁻¹ K⁻¹.
- Q3 · MDCAT 2025 · Work and Energy
If P is the momentum of an object and m is its mass, then its kinetic energy is:
- A.P/2m
- B.P²/2m
- C.1/2 Pm
- D.1/2 P2m
Show answer
Answer: B. P²/2m — Kinetic energy in terms of momentum: KE = P²/2m.