This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 34 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 34 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many codons are needed to make 3 amino acids? A) 2. B) 3. C) 6. D) 9. Show Answer Correct Answer: B) 3. 2. Large biological molecules (polymers) are made up of smaller subunits. What are these smaller subunits called? A) Cells. B) Enzymes. C) Organelles. D) Monomers. Show Answer Correct Answer: D) Monomers. 3. Water sticks to other things A) Cohesion. B) Adhesion. C) Resists temperature change. D) Is less dense. Show Answer Correct Answer: B) Adhesion. 4. Which biomolecule contains genetic information? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: D) Nucleic Acids. 5. What type of molecule is an enzyme? A) Lipid. B) Nucleic Acid. C) Protein. D) Carbohydrate. Show Answer Correct Answer: C) Protein. 6. Helicase is an example of a biomolecule that can destroy bonds between DNA strands during DNA replication.What biomolecule is helicase? A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: C) Protein. 7. DNA and RNA are made up of nucleotides / amino acids. A) Nucleotides. B) Amino acids. C) All the above. D) None of the above. Show Answer Correct Answer: A) Nucleotides. 8. Sugars (saccharides) are not carbohydrates. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 9. What is the job function of Lipids A) Store energy and water proofing. B) Help in digestion. C) Transport oxygen in blood. D) Fight against diseases. Show Answer Correct Answer: A) Store energy and water proofing. 10. Which best describes how an enzyme affects the rate of a chemical reaction? A) It increases the temperature of the reaction. B) It lowers the activation energy of the reaction. C) It changes the products created in the reaction. D) It causes the reaction to proceed in an unfavorable direction. Show Answer Correct Answer: B) It lowers the activation energy of the reaction. 11. What are the subunits of DNA and their function? A) Nucleotides that store information. B) Monosaccharides that provide quick energy for the cell. C) Lipids that store energy and provide insulation. D) Proteins that provide the building blocks for the structural components of organisms. Show Answer Correct Answer: A) Nucleotides that store information. 12. Which group of element make up a carbohydrate molecule? A) C, H, O. B) C, H, O, N. C) C, H, O, N, P. D) Of the choices. Show Answer Correct Answer: A) C, H, O. 13. What is the smallest unit of a macromolecule? A) Micromolecule. B) Glucose. C) Monomer. D) Polymer. Show Answer Correct Answer: C) Monomer. 14. AMINO ACIDS ARE THE BUILDING BLOCKS OF ..... A) CARBHYDRATES. B) LIPIDS. C) NUCLEIC ACIDS. D) PROTEINS. Show Answer Correct Answer: D) PROTEINS. 15. What is the monomer of carbohydrates? A) Glycerol. B) Nucleotide. C) Amino acid. D) Monosaccharide. Show Answer Correct Answer: D) Monosaccharide. 16. It serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules. A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic Acid. Show Answer Correct Answer: C) Lipid. 17. A compound give negative test with ninhydrin and positive test with benedict's solution. The compound is A) A protein. B) An amino acid. C) A lipid. D) A monosaccharide. Show Answer Correct Answer: D) A monosaccharide. 18. Oils are which type of macromolecule? A) Carbohydrates. B) Lipids. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: B) Lipids. 19. Which group of biomolecules does the polysaccharide Starch belong to? A) Lipid. B) Protein. C) Nucleic Acid. D) Carbohydrate. Show Answer Correct Answer: D) Carbohydrate. 20. The macromolecule that provides quick and short term energy. A) Lipids. B) Proteins. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: C) Carbohydrates. 21. Which biomolecule cushions vital organs, insulates the body and is a source of long-term energy? A) Lipids. B) Carbohydrates. C) Protein. D) Nucleic acids. Show Answer Correct Answer: A) Lipids. 22. What is homeostasis? A) Keeping something at an ideal position/setting. B) A species of hominids. C) The category in which we put biomolecules. D) A mixture that is fully blended (with all biomolecules equal). Show Answer Correct Answer: A) Keeping something at an ideal position/setting. 23. Which biomolecule is most likely to be involved in the formation of cell membranes? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic Acids. Show Answer Correct Answer: B) Lipids. 24. Four different nucleotides are used as building blocks of DNA. Which of the following can be used to distinguish one nucleotide from another? A) The nitrogenous base. B) The shape of the deoxyribose sugar. C) The length of the phosphate group. D) The type of fatty acid. Show Answer Correct Answer: A) The nitrogenous base. 25. Which of the following biomolecules is primarily responsible for catalyzing biochemical reactions? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: C) Proteins. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 9 Biomolecules Quiz 1Class 11 Biology Chapter 9 Biomolecules Quiz 2Class 11 Biology Chapter 9 Biomolecules Quiz 3Class 11 Biology Chapter 9 Biomolecules Quiz 4Class 11 Biology Chapter 9 Biomolecules Quiz 5Class 11 Biology Chapter 9 Biomolecules Quiz 6Class 11 Biology Chapter 9 Biomolecules Quiz 7Class 11 Biology Chapter 9 Biomolecules Quiz 8Class 11 Biology Chapter 9 Biomolecules Quiz 9Class 11 Biology Chapter 9 Biomolecules Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books