Biology MCQs
— questionsRevise cell biology, human physiology, genetics and other foundational biological concepts for MDCAT.
Practice free MDCAT MCQs online with instant answers and explanations. Choose MDCAT or ECAT, pick Biology, Chemistry, Physics, Mathematics or English, and answer timed MCQs just like the real exam.
The question bank holds 670 original practice MCQs with explanations, timed rounds and missed-question review.
Target one area for a focused drill, then combine subjects when you are ready to test switching speed and concentration.
Revise cell biology, human physiology, genetics and other foundational biological concepts for MDCAT.
Check concepts from atomic structure, bonding, reactions, gases, solutions and basic physical chemistry.
Work through motion, waves, electricity, optics and formula-based reasoning for both entry tests.
Practise algebra, calculus, logarithms, matrices and coordinate geometry for ECAT preparation.
Improve grammar, punctuation, vocabulary and sentence-level accuracy for test-day questions.
Every MDCAT MCQ on this page shows the correct answer and a short explanation immediately after you respond. Timed practice builds the speed you need for 180 questions in 3 hours, and the review screen collects every miss so you can revise weak topics. Biology carries 45% of the MDCAT paper, so most toppers drill Biology MCQs daily alongside Chemistry and Physics.
Choose MDCAT or ECAT, pick a subject and review every missed question.