This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. I am responsible for long term energy storage in mammals. A) Protein. B) Lipid. C) Carbohydrate. D) Nucleic Acid. Show Answer Correct Answer: B) Lipid. 2. Which of the following is organic? A) CHO. B) H2O. C) NaCl. D) H3O. Show Answer Correct Answer: A) CHO. 3. What type of biomolecule is DNA? A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: D) Nucleic Acid. 4. Enzyme function is often compared to a lock and key. The lock and key model helps explain the importance of which property of an enzyme? A) Movement. B) Physical structure. C) All the above. D) None of the above. Show Answer Correct Answer: B) Physical structure. 5. One building block for a biomolecule. A) Monosaccharides. B) Monomer. C) Proteins. D) Polymer. Show Answer Correct Answer: B) Monomer. 6. Which biomolecule is most commonly used by cells for immediate energy? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: C) Carbohydrates. 7. Which monomer makes up lipids? A) Amino acid. B) Nucleotide. C) Glycerol and Fatty acid. D) Monosaccharide. Show Answer Correct Answer: C) Glycerol and Fatty acid. 8. Which of the following is a characteristic of carbohydrates? A) Provides structure for cells. B) Provides energy for all cellular activities. C) Contain complex carbohydrates known as starches. D) All of the above. Show Answer Correct Answer: D) All of the above. 9. The primary structure of a protein refers to: A) Sequence of amino acids. B) $\alpha$-helix or $\beta$-pleated sheet. C) Folding of polypeptide chains into a 3D structure. D) Association of multiple polypeptide subunits. Show Answer Correct Answer: A) Sequence of amino acids. 10. Transition state structure of the substrate formed during an enzymatic reaction is A) Transient but stable. B) Permanent but unstable. C) Transient and unstable. D) Permanent and stable. Show Answer Correct Answer: C) Transient and unstable. 11. Which biomolecule is helpful for long term energy storage? A) Nucleic acid. B) Protein. C) Carbohydrate. D) Lipid. Show Answer Correct Answer: D) Lipid. 12. Water is removed from digested food in which organ of the digestive system? A) Mouth. B) Stomach. C) Small intestine. D) Large intestine. Show Answer Correct Answer: D) Large intestine. 13. What is the role of lipids in the body? A) Lipids provide energy, insulate and protect organs, aid in vitamin absorption, and are structural components of cell membranes. B) Lipids are only found in unhealthy foods. C) Lipids have no role in the body. D) Lipids are primarily used for muscle growth. Show Answer Correct Answer: A) Lipids provide energy, insulate and protect organs, aid in vitamin absorption, and are structural components of cell membranes. 14. A macromolecule is called a biomeolecule because it A) Is made fro several monomers. B) It is a polypeptide. C) It is made from nuceic acids. D) It is associated with living things. Show Answer Correct Answer: D) It is associated with living things. 15. Carbohydrates contain only (a), hydrogen, and oxygen A) A. carbon. B) Nitrogen. C) Phosphorus. D) Sulphur. Show Answer Correct Answer: A) A. carbon. 16. Which of the following is not an example carbohydrate? A) Glycogen. B) Starch. C) Lysine. D) Fructose. Show Answer Correct Answer: C) Lysine. 17. The monomer for ..... is amino acid. A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: B) Proteins. 18. Which of the following term is correct about Enzymes A) Carbohydrates. B) Dinucleotides. C) Nucleic acids. D) Biocatalyst. Show Answer Correct Answer: D) Biocatalyst. 19. Which biomolecule is responsible for catalyzing chemical reactions in the body? A) Enzymes. B) Carbohydrates. C) Lipids. D) Proteins. Show Answer Correct Answer: A) Enzymes. 20. Which biomolecule is primarily responsible for storing genetic information in cells? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: D) Nucleic acids. 21. Rohan, Mason, and Luna are having a debate about biomolecules. They want to know which biomolecule stores and transmits genetic information. Can you help them? A) Carbohydrate. B) DNA. C) Protein. D) RNA. Show Answer Correct Answer: B) DNA. 22. Which of the following is not an example of external stimuli? A) Thirst. B) Light. C) Temperature. D) Gravity. Show Answer Correct Answer: A) Thirst. 23. Which biomolecule is a source of quick energy for cells? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: A) Carbohydrates. 24. What is the main function of nucleic acid? A) Store and transmit hereditary, or genetic, information. B) Growth and repair. C) Energy storage. D) Quick access to energy. Show Answer Correct Answer: A) Store and transmit hereditary, or genetic, information. 25. Which of the following is a monomer of proteins? A) Monosaccharide. B) Fatty acid. C) Amino acid. D) Nucleotide. Show Answer Correct Answer: C) Amino acid. ← 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