This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 9 Biomolecules – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 13 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. During transcription, an RNA molecule is formed ..... A) That is complementary to both strands of DNA. B) That is complimentary to neither strand of DNA. C) That is double stranded. D) Inside of the nucleus. Show Answer Correct Answer: D) Inside of the nucleus. 2. Which two biomolecules are used for energy? A) Carbohydrates and Proteins. B) Lipids and Carbohydrates. C) Proteins and Lipids. D) Nucleic Acids and Proteins. Show Answer Correct Answer: B) Lipids and Carbohydrates. 3. Why are Nucleic Acids important? A) They make DNA and are responsible for the coding of your traits. B) They build muscle and work as enzymes. C) They are a fast source of energy. D) They provide insulation (warmth) and long term energy. Show Answer Correct Answer: A) They make DNA and are responsible for the coding of your traits. 4. Which biomolecule is hydrophobic in nature? A) Nucleic Acids. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. 5. ..... act as intercellular messanger A) Protein. B) Hormones. C) Enzymes. D) Vitamines. Show Answer Correct Answer: B) Hormones. 6. Which of the following would be the best example of a protein? A) Bread. B) Butter. C) Strawberries. D) Steak. Show Answer Correct Answer: D) Steak. 7. What does the word "polymer" mean? A) 10 molecules. B) Many molecules. C) One molecule. D) No molecules. Show Answer Correct Answer: B) Many molecules. 8. Which biomolecule would starch and glucose be considered? A) Nucleic acids. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: B) Carbohydrates. 9. Waxes and fats are insoluble in water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Structurally, nucleotides are similar to what energy rich molecule? A) Amino acids. B) Lipid molecules. C) Adenosine triphosphate (ATP). D) Glucose. Show Answer Correct Answer: C) Adenosine triphosphate (ATP). 11. A sugar that is a monosaccharide is made up of how many sugars? A) One. B) Two. C) More than two. D) None of the above. Show Answer Correct Answer: A) One. 12. Which type of substance serves as a catalyst for reactions that break large food molecules into smaller useful molecules? A) Lipids. B) Enzymes. C) Vitamins. D) Nucleotides. Show Answer Correct Answer: B) Enzymes. 13. In a DNA molecule, which biomolecule serves as the backbone, holding the genetic information together? A) Nucleic Acids. B) Proteins. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: A) Nucleic Acids. 14. Steroids are an example of which biomolecule A) Protein. B) Carbohydrate. C) Lipid. D) Nucleic acid. Show Answer Correct Answer: C) Lipid. 15. When these bond together, they form a protein A) Peptide Bonds. B) Amino Acids. C) Nucleotides. D) Ribose. Show Answer Correct Answer: B) Amino Acids. 16. Which elements are found in proteins? A) C, H, O, N, P. B) C, H, O, N. C) C, H, O. D) None of the above. Show Answer Correct Answer: B) C, H, O, N. 17. What does an enzyme do to a chemical reaction? A) Speeds it up (catalyzes). B) Slows it down. C) Breaks it down. D) None of the above. Show Answer Correct Answer: A) Speeds it up (catalyzes). 18. Which of the following units are repeatedly joined together to FORM a strand of DNA? A) Polysaccharides. B) Amino acids. C) Fatty acids. D) Nucleotides. Show Answer Correct Answer: D) Nucleotides. 19. What is the name of lipid polymers? A) Polysaccharides. B) Triglycerides. C) Polypeptides. D) DNA and RNA. Show Answer Correct Answer: B) Triglycerides. 20. Emma, Mason, and Abigail are having a debate about biomolecules. They are trying to figure out which biomolecule is insoluble in water. Can you help them? A) Nucleic acids. B) Proteins. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: C) Lipids. 21. You are on a survival trip and you need to choose a biomolecule for insulation and energy storage. Which one would you choose? A) Carbohydrate. B) Lipid. C) Nucleic Acid. D) Protein. Show Answer Correct Answer: B) Lipid. 22. An ..... is a type of protein that speeds up a chemical reaction in a living thing by lowering their activation energy. A) Cell Cycle. B) Enzyme. C) Dog. D) Substrate. Show Answer Correct Answer: B) Enzyme. 23. The monomer of a lipid is called ..... A) A nucleotide. B) An amino acid. C) A monosaccharide. D) A fatty acid. Show Answer Correct Answer: D) A fatty acid. 24. Any of numerous substances that are produced by cells and living organisms. A) Biomolecules. B) Macromolecules. C) Both A and B. D) None of the above. Show Answer Correct Answer: C) Both A and B. 25. What connects amino acids? A) Polypeptide bonds. B) Peptide chains. C) Peptide bonds. D) Polypeptide chains. Show Answer Correct Answer: C) Peptide bonds. 26. This molecule is made of glycerol and fatty acids. A) Carbohydrates. B) Nucleic Acids. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. 27. Cellulose is which type of biomolecule? A) Protein. B) Lipid. C) Carbohydrate. D) Nucleic Acid. Show Answer Correct Answer: C) Carbohydrate. 28. Repeating units of ..... form Lipids. A) Amino acids. B) Fatty acids. C) Nucleotides. D) Monosaccharides. Show Answer Correct Answer: B) Fatty acids. 29. A polypeptide will become a A) Nucleic acids. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: C) Proteins. 30. In a DNA molecule, the "rungs" of the ladder are paired nitrogenous bases (base pairs). What forms the "sides" of the ladder? A) Sugars. B) Phosphates. C) Linked sugars and phosphates. D) Adenine and Thymine. Show Answer Correct Answer: C) Linked sugars and phosphates. 31. Which one of these is not biomolecule? A) Amino acid. B) Fatty acid. C) Hydrochloric acid. D) Nucleic acid. Show Answer Correct Answer: C) Hydrochloric acid. 32. Which of these is NOT a lipid A) Waxes. B) Amino acids. C) Oils. D) Fats. Show Answer Correct Answer: B) Amino acids. 33. Water is a product in ..... A) Dehydration Synthesis. B) Hydrolysis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Dehydration Synthesis. 34. Which of the following statement is not true about glucose? A) On heating with HI it forms n-Hexane. B) It is present in furanose form. C) It is an aldohexose. D) It does not give 2, 4-DNP test. Show Answer Correct Answer: B) It is present in furanose form. 35. The two strands of DNA are ..... A) Anti-parallel and complementary. B) Similar in nature and complementary. C) Parallel and complementary. D) Different in nature. Show Answer Correct Answer: A) Anti-parallel and complementary. 36. Define nucleic acid. A) Stores energy. B) A polymer capable of storing and transferring genetic information. C) Movement. D) Physical structure. Show Answer Correct Answer: B) A polymer capable of storing and transferring genetic information. 37. ..... is an example of fibrous protein A) Soybaean. B) Nails. C) Egg albumin. D) Hair keratin. Show Answer Correct Answer: D) Hair keratin. 38. The pyrimidine bases present in DNA are A) Cytosine and adenine. B) Cytosine and guanine. C) Cytosine and thymine. D) Cytosine and Uracil. Show Answer Correct Answer: C) Cytosine and thymine. 39. Which of the following is a polymer of glucose? A) Triglyceride. B) RNA. C) DNA. D) Starch. Show Answer Correct Answer: D) Starch. 40. Where an enzyme joins with a substrate is called its ..... A) Substrate. B) PH. C) Active Site. D) Mouth. Show Answer Correct Answer: C) Active Site. 41. A single subunit of a biomolecule is called a ..... A) Monomer. B) Polymer. C) Trinomer. D) Dinomer. Show Answer Correct Answer: A) Monomer. 42. Which of the following is an enzyme? A) Glycine. B) Amylase. C) Fructose. D) Peptidoglycan. Show Answer Correct Answer: B) Amylase. 43. Which biomolecule is most abundant in the cell membrane and helps in forming its structure? A) Nucleic Acids. B) Lipids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: B) Lipids. 44. ..... have involvement in the immune system. A) Lipids. B) Nucleic acids. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: C) Proteins. 45. Food source examples of lipids are all of the following except: A) Oils. B) Lard (Manteca). C) Butter. D) Eggs. Show Answer Correct Answer: D) Eggs. 46. CHO with head and tails A) Nucleic acid. B) Carbohydrate. C) Protein. D) Lipid. Show Answer Correct Answer: D) Lipid. 47. The suffix found in names of sugars A) -ol. B) -ase. C) -ose. D) None of the above. Show Answer Correct Answer: C) -ose. 48. What level of structure does the R group interact effect? A) Quaternary. B) Secondary. C) Tertiary. D) Primary. Show Answer Correct Answer: C) Tertiary. 49. How many codons are needed to make 3 amino acids? A) 2. B) 3. C) 6. D) 9. Show Answer Correct Answer: B) 3. 50. Large biological molecules (polymers) are made up of smaller subunits. What are these smaller subunits called? A) Cells. B) Monomers. C) Enzymes. D) Organelles. Show Answer Correct Answer: B) Monomers. 51. Water sticks to other things A) Cohesion. B) Resists temperature change. C) Is less dense. D) Adhesion. Show Answer Correct Answer: D) Adhesion. 52. Which biomolecule contains genetic information? A) Carbohydrates. B) Nucleic Acids. C) Proteins. D) Lipids. Show Answer Correct Answer: B) Nucleic Acids. 53. What type of molecule is an enzyme? A) Protein. B) Nucleic Acid. C) Lipid. D) Carbohydrate. Show Answer Correct Answer: A) Protein. 54. 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. 55. 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. 56. Sugars (saccharides) are not carbohydrates. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 57. 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. 58. Which best describes how an enzyme affects the rate of a chemical reaction? A) It lowers the activation energy of the reaction. B) It changes the products created in the reaction. C) It causes the reaction to proceed in an unfavorable direction. D) It increases the temperature of the reaction. Show Answer Correct Answer: A) It lowers the activation energy of the reaction. 59. 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. 60. Which group of element make up a carbohydrate molecule? A) C, H, O, N. B) C, H, O, N, P. C) C, H, O. D) Of the choices. Show Answer Correct Answer: C) C, H, O. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books