Biology Quiz on Enzymes – 50 MCQs with Answers & Explanations MDCAT Online

Biology Test Quiz Series MDCAT Entry Test

🧾 Intro for Quiz Page

Enzymes are biological catalysts that speed up chemical reactions in living cells without being consumed. They are essential for digestion, respiration, photosynthesis, DNA replication, and almost every process in the body.

This quiz contains 50 multiple-choice questions (MCQs) designed for  MDCAT. It will help you revise important concepts like:

• Enzyme structure (apoenzyme, cofactor, coenzyme, prosthetic group)
• Enzyme models (lock & key, induced fit)
• Enzyme kinetics (Km, Vmax, turnover number)
• Inhibition (competitive, non-competitive, allosteric, feedback)
• Special enzyme features and examples

🔹 How to attempt the quiz?

1. Read each question carefully.
2. Select the option you think is correct.
3. After completing, press the Submit Quiz button.
4. Your score will be shown instantly.
5. Correct answers are highlighted in green and wrong answers in red.

✨ Quiz Features

• ✅ Covers 50 important MCQs with answers
• ✅ Instant feedback after submission
• ✅ Score out of 50 displayed at the end
• ✅ Helps in exam & entry test preparation

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MDCAT 2025 Enzymes Quiz Challenge

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