This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 45 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 45 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which biomolecule is most abundant in the cell membrane and contributes to its fluidity and structure? A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: C) Lipids. 2. The monomer for proteins is? A) Amino acids. B) Nucleotides. C) Monosaccharides. D) Triglycerides. Show Answer Correct Answer: A) Amino acids. 3. The Sudan IV Test will test for the presence of ..... A) Protein. B) Lipids. C) Starch. D) Simple Sugars. Show Answer Correct Answer: B) Lipids. 4. Which biomolecules does a slice of pepperoni pizza have? A) Carbohydrates. B) Carbohydrates and Lipids. C) Protein and Carbohydrates. D) Carbohydrates, Lipids, Protein, and Nucleic Acids. Show Answer Correct Answer: D) Carbohydrates, Lipids, Protein, and Nucleic Acids. 5. Water LOVING molecules that form hydrogen bonds with water and dissolve in water. A) Monomers. B) Hydrophobic. C) Hydrophilic. D) Polymers. Show Answer Correct Answer: C) Hydrophilic. 6. What is the basic structure of carbohydrates? A) Carbon, hydrogen, and nitrogen atoms. B) Carbon, hydrogen, and sulfur atoms. C) Carbon, hydrogen, and oxygen atoms. D) Carbon and oxygen atoms. Show Answer Correct Answer: C) Carbon, hydrogen, and oxygen atoms. 7. What does the element S stand for? A) Antimony. B) Tin. C) Sulfer. D) Strontium. Show Answer Correct Answer: C) Sulfer. 8. Which statement describes the major role of lipids wihtin the cell? A) They cause DNA to replicate. B) They move RNA in the cytoplasm. C) They catalyze chemical reactions in the cell cytoplasm. D) They are the main structural components of membranes. Show Answer Correct Answer: D) They are the main structural components of membranes. 9. Carbohydrates are water-soluble. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 10. Which elements are found in nucleic acids? A) C, H, O, N, P. B) C, H, O, N. C) C, H, O. D) None of the above. Show Answer Correct Answer: A) C, H, O, N, P. 11. Many monomers can be cross-linked together to form ..... A) Molecules. B) Plastic material. C) Polymers. D) Balloons and silly putty. Show Answer Correct Answer: C) Polymers. 12. Carbohydrates are classified on the basis of their behaviour on hydrolysis and also as reducing or non-reducing sugar. Sucrose is a ..... A) Monosaccharide. B) Reducing sugar. C) Non-reducing sugar. D) Polysaccharide. Show Answer Correct Answer: C) Non-reducing sugar. 13. Which biomolecule is made up of fatty acids and glycerol? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: B) Lipids. 14. Substrates bind to enzymes at the ..... A) Polymer. B) Denature site. C) Active site. D) Complex. Show Answer Correct Answer: C) Active site. 15. A biomolecule compose of carbon, hydrogen, oxygen and nitrogen A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic acid. Show Answer Correct Answer: C) Protein. 16. The chemical reaction that breaks down a polymer by adding water is A) Dehydration Synthesis. B) Hydrophobia. C) Hydrolysis. D) Dehydration. Show Answer Correct Answer: C) Hydrolysis. 17. I contain elements C, H, and O and have a ring-like structure A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 18. Provides genetic information A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: D) Nucleic acids. 19. Which biomolecule is correctly paired with one of its functions? A) Nucleic Acids:serves as insulation for animals. B) Lipids:Give quick energy to cells. C) Carbohydrates:Store genetic information. D) Proteins:Provide structure in skin, hair, nails. Show Answer Correct Answer: D) Proteins:Provide structure in skin, hair, nails. 20. ..... is defined as a single unit. A) Carbon. B) Monomer. C) Polymer. D) Oxygen. Show Answer Correct Answer: B) Monomer. 21. What are the 4 bases that can be found in a nucleotide in DNA? A) A, U, G, C. B) A, T, G, C. C) U, T, G, C. D) A, T, U, G. Show Answer Correct Answer: B) A, T, G, C. 22. Which molecules belongs to macromolecule protein? A) Fatty acids, glycerol, cholesterol. B) Enzymes, insulin, hemoglobin. C) Cellulose, glycogen, starch. D) DNA, RNA, nucleotides. Show Answer Correct Answer: B) Enzymes, insulin, hemoglobin. 23. Glucose is a ..... A) Lipid. B) Protein. C) Monosaccharide. D) Starch. Show Answer Correct Answer: C) Monosaccharide. 24. What is the major function of carbohydrates? A) Energy storage. B) Cell membrane structure. C) Muscle tissue formation. D) Cell signaling. Show Answer Correct Answer: A) Energy storage. 25. Which of the following is an essential amino acid? A) Glycine. B) Valine. C) Alanine. D) Serine. Show Answer Correct Answer: B) Valine. ← 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