This page is dedicated to IMAT Biology questions! All the questions you see here are designed to be exactly as per the style and level of IMAT 2025 so that you can practice for IMAT and prepare for IMAT Medical Exam. By solving these questions, you will test your knowledge, review key concepts of Biology and ensure that you will appear on the exam day with full confidence.
All IMAT biology questions come with answer keys so you can see where you need more practice after answering. Remember, actively solving questions is the best way to increase your skills and true mastery!
Also, the Course in Use website offers you the opportunity to take online IMAT simulator exams so that you can interactively assess your level and prepare for test day. This free practice set is great for IMAT students and candidates, and you can be sure that this method will make you fully familiar with the style and type of IMAT questions.
Practice IMAT biology questions
1.In the urea cycle, what is ammonia converted to?
A) Urea
B) Alanine
C) Glucose
D) Creatine
E) Glycine
2.Which of the following statements about β-oxidation is correct?
A) Occurs in cytoplasm and produces glucose.
B) Occurs in mitochondria and produces acetyl-CoA.
C) Produces CO₂ directly.
D) Requires FADH₂ as a substrate.
E) Involved in fatty acid synthesis.
3.Which molecule is the final electron acceptor in aerobic respiration?
A) Carbon dioxide
B) Oxygen
C) NAD⁺
D) FAD
E) ATP
4.How does the Na⁺/K⁺ pump work?
A) It is found only in muscle cells.
B) It moves 2 Na⁺ ions in and 3 K⁺ ions out, using ATP.
C) It works by simple diffusion.
D) It moves 3 Na⁺ ions out and 2 K⁺ ions into the cell, using ATP.
E) It works without using energy.
5.Which enzyme is responsible for joining Okazaki fragments during DNA replication?
A)DNA helicase
B) DNA ligase
C) DNA polymerase III
D) Topoisomerase
E) Primase
6.Which of the following statements about mitochondria is correct?
A)It is found only in prokaryotic cells.
B) It synthesizes proteins for secretion outside the cell.
C) It contains only RNA and no DNA.
D) It is the site of the Krebs cycle and oxidative phosphorylation. It is found only in prokaryotic cells.
E) It produces oxygen in respiration.
7.Hemoglobin exhibits cooperative binding to oxygen because:
A) Binding of oxygen to one subunit increases the affinity of the other subunits.
B) Each heme group binds two oxygen molecules.
C) Binding of CO₂ increases the affinity for oxygen.
D) It has no allotropic sites.
E) It consists of a polypeptide chain.
8.Which hormone increases blood glucose concentration?
A) Glucagon
B) Insulin
C) Oxytocin
D) Calcitonin
E) Vasopressin
9.What are ribosomes located in?
A) Protein synthesis
B) Fat synthesis
C) Glycogen storage
D) DNA replication
E) Energy production
10.Which of the following statements about enzymes is correct?
A) They lower the activation energy of reactions.
B) They increase the activation energy required.
C) They are consumed during the reaction.
D) They change the equilibrium of the reaction.
E) They can catalyze any type of reaction.
| Question number | Correct Answer |
| 1 | A |
| 2 | B |
| 3 | B |
| 4 | D |
| 5 | B |
| 6 | D |
| 7 | A |
| 8 | A |
| 9 | A |
| 10 | A |
On the Course in Use website, you can take the IMAT online test and measure your level interactively. This is a great opportunity to practice IMAT test and improve your IMAT biology skills.
Proactively solving questions and using this IMAT online test is the best way to increase your mastery and preparation for the IMAT medical exam and succeed on the actual test day.
