NEET Biology: Biomolecules — MCQ Test 13

Q6. Which enzyme catalyzes the breakdown of hydrogen peroxide into water and oxygen?

Q7. Which biomolecule is responsible for the catalytic activity of ribozymes?

Q8. Which of the following is a saturated fatty acid?

Q9. Which of the following statements about enzymes is incorrect?

Q10. Which of the following statements about DNA is correct?

NEET BiologyBiomolecules

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Which of the following statements about coenzymes is incorrect?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Biomolecules. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Following, Statements, Coenzymes, Incorrect, Catalyzes, and Oxidation.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which of the following statements about coenzymes is incorrect?

  • A. Coenzymes are organic molecules that assist enzyme function.
  • B. NAD+ and FAD are examples of coenzymes.
  • C. Coenzymes are always permanently bound to enzymes.
  • D. Some vitamins function as coenzymes.

Q2. Which enzyme class catalyzes oxidation-reduction reactions?

  • A. Hydrolases
  • B. Transferases
  • C. Oxidoreductases
  • D. Ligases

Q3. What is the role of competitive inhibitors in enzyme activity?

  • A. They increase enzyme activity
  • B. They bind to the active site of the enzyme
  • C. They permanently disable the enzyme
  • D. They bind to a site other than the active site

Q4. Which property of enzymes allows them to function as biological catalysts?

  • A. They decrease the activation energy of reactions
  • B. They are consumed in reactions
  • C. They provide energy for reactions
  • D. They increase the activation energy of reactions

Q5. Which of the following statements is incorrect about cofactors?

  • A. Cofactors are non-protein components that assist enzymes.
  • B. Some cofactors are metal ions like zinc and magnesium.
  • C. All enzymes require cofactors to function.
  • D. Coenzymes are organic cofactors.

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