This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 9 Biomolecules – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 17 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which biomolecule class does glucose belong to? A) Proteins. B) Nucleic acids. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: C) Carbohydrates. 2. Chemical digestion A) Results in the formation of a new substance. B) Does not break down food. C) Does not result in a new substance does not result in a new substance. D) Is a physicial process. Show Answer Correct Answer: A) Results in the formation of a new substance. 3. The monomer Glucose/Monosaccharides make up the polymer ..... A) Nucleic Acids. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: C) Carbohydrates. 4. What will be formed if glucose is combined to galactose? A) Lactose. B) Sucrose. C) Maltose. D) Glucose. Show Answer Correct Answer: A) Lactose. 5. Which molecule is a polymer? A) Protein. B) Glycerol & fatty acids. C) Nucleotide. D) Monosaccharide. Show Answer Correct Answer: A) Protein. 6. This biomolecule includes sugars and starches. A) Protein. B) Nucleic acids. C) Carbohydrate. D) Lipids. Show Answer Correct Answer: C) Carbohydrate. 7. Which of the following is a function of lipids? A) Coding for proteins. B) Temperature regulation. C) Fast source of energy. D) Building cell walls. Show Answer Correct Answer: B) Temperature regulation. 8. How do animals store complex sugars? A) In the form of glycogen. B) In the form of cellulose. C) In the form of chitin. D) None of the above. Show Answer Correct Answer: A) In the form of glycogen. 9. Which of the following is not a nucleotide: A) DNA. B) RNA. C) Lipid. D) None of the above. Show Answer Correct Answer: C) Lipid. 10. Assertion:Glucose gives negative test with 2, 4DNP reagent.Reason:Glucose does not have a free-CHO group. A) Both A & R are correct and R is the correct explanation. B) Both A & R are correct but R is not the correct explanation. C) A is the correct statement but R is wrong. D) Both A & R are wrong. OR A is wrong & R is correct. Show Answer Correct Answer: A) Both A & R are correct and R is the correct explanation. 11. Which biomolecule is made of carbon, hydrogen, oxygen and nitrogen? A) Protein. B) Lipid. C) Nucleic Acid. D) Carbohydrate. Show Answer Correct Answer: A) Protein. 12. In what ways do enzymes help a cell carry out its chemical reactions? A) Enzymes lower the amount of reactants needed for the reaction to occur. B) Activation energy and the rate of reaction are both increased by enzymes. C) Enzymes speed up chemical reactions by lowering the activation energy needed. D) Enzymes slow the reaction down by increasing the amount of energy produced. Show Answer Correct Answer: C) Enzymes speed up chemical reactions by lowering the activation energy needed. 13. Which one is insoluble? A) Lipids. B) Carbohydrates. C) All the above. D) None of the above. Show Answer Correct Answer: A) Lipids. 14. Which of the following is a function of carbohydrates in the body? A) Catalysis of reactions. B) Genetic information storage. C) Insulation. D) Energy storage. Show Answer Correct Answer: D) Energy storage. 15. Which list the levels of organization in order from smallest to largest? A) Cell-organ-tissue-biomolecules-organism. B) Organism-atom-cell-organ system-organ-biomolecules. C) Biomolecules-organelles-cells-tissue-organ-organ system-organism. D) Organism-organ system-organ-tissue-cells-organelles-biomolecules. Show Answer Correct Answer: C) Biomolecules-organelles-cells-tissue-organ-organ system-organism. 16. Glucose, Lactose, and Sucrose all end in-ose. This means they are sugars ..... which group of biomolecules do they belong to? A) Lipids. B) Carbohydrates. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Carbohydrates. 17. Denaturation of protein leads to loss of its biological activity by A) Formation of amino acids. B) Loss of primary structure. C) Loss of both primary and secondary structure. D) Loss of both secondary and tertiary structures. Show Answer Correct Answer: D) Loss of both secondary and tertiary structures. 18. What macromolecule is the genetic material A) Lipid. B) Protein. C) Carbohydrate. D) Nucleic acid. Show Answer Correct Answer: D) Nucleic acid. 19. What type of biomolecule is primarily used for long-term energy storage in animals? A) Lipids. B) Nucleic Acids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: A) Lipids. 20. The monomer for ..... is glycerol + fatty acid. A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic Acids. Show Answer Correct Answer: B) Lipids. 21. What biomolecules would help a bear withstand months of hibernation without eating? A) Lipids. B) Protein. C) Carbohydrates. D) Nucleic Acids. Show Answer Correct Answer: A) Lipids. 22. What elements (monomers) make up a protein? A) C, H, O. B) C, H, O, N. C) C, H, O, N, P. D) None of the above. Show Answer Correct Answer: B) C, H, O, N. 23. On oxidation with a mild oxidising agent like Br2/H20, the glucose is oxidized to A) Valeric acid. B) Saccharic acid. C) Glucaric acid. D) Gluconic acid. Show Answer Correct Answer: D) Gluconic acid. 24. The process that builds molecules by removing water to bind them together is A) Dehydration Synthesis. B) Hydrolysis. C) Protein Synthesis. D) Lysis. Show Answer Correct Answer: A) Dehydration Synthesis. 25. Which of the following is a simple carbohydrate? A) Starch. B) Glycogen. C) Glucose. D) Cellulose. Show Answer Correct Answer: C) Glucose. 26. Proteins are composed of which type of monomer? A) Fatty acids. B) Glucose. C) Glycerol. D) Amino acids. Show Answer Correct Answer: D) Amino acids. 27. Which of these influence the rate of a chemical reaction A) Nature of the reacting substances. B) Concentration of reactants. C) Temperature of reactants and products. D) Presence of an enzyme. E) All the the above. Show Answer Correct Answer: E) All the the above. 28. What is another name for biomolecules A) Living molecules. B) Big molecules. C) Macromolecules. D) Biochemicals. Show Answer Correct Answer: C) Macromolecules. 29. Carbohydrates both store energy in some way, how does protein compare? A) Protein provides energy and structure to the cell, as well as other functions. B) Provides energy to the cell. C) Provides only structure to the cell. D) Helps move carbohydrates. Show Answer Correct Answer: A) Protein provides energy and structure to the cell, as well as other functions. 30. A ..... is an organic molecule used as the body's primary source of energy. A) Lipid. B) Nucleic acid. C) Carbohydrate. D) Protein. Show Answer Correct Answer: C) Carbohydrate. 31. Which of the following vitamins is water-soluble? A) Vitamin A. B) Vitamin K. C) Vitamin D. D) Vitamin C. Show Answer Correct Answer: D) Vitamin C. 32. Proteins are giant molecules made up of many ..... attached together in a chain. A) Saccharides. B) Fatty Acids. C) Amino Acids. D) Nitrogen Bases. Show Answer Correct Answer: C) Amino Acids. 33. How does an enzymes shape relate to its function? A) The shape of the enzyme has no relation to its function. B) The enzyme is shaped specially for certain substrates to perform a specific reaction. C) The enzyme shape acts as a receptor to certain products. D) The enzyme shape can fit into specific substrates to cease a reaction. Show Answer Correct Answer: B) The enzyme is shaped specially for certain substrates to perform a specific reaction. 34. Which of the following means "to break down" ? A) Synthesis. B) Digestion. C) Denature. D) Catalyze. Show Answer Correct Answer: B) Digestion. 35. Which biomolecule is made of the monomer amino acids? A) Protein. B) Lipid. C) Nucleic Acid. D) Carbohydrate. Show Answer Correct Answer: A) Protein. 36. Which of the following functions is not associated with proteins? A) Information storage. B) Enzymes. C) Providing structural material. D) Contraction. E) Specific binding. Show Answer Correct Answer: A) Information storage. 37. DNA & RNA are types of ..... A) Proteins. B) Nucleic acids. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: B) Nucleic acids. 38. What is the function Nucleic Acids A) They are the main source of energy for the body. B) They are responsible for muscle growth. C) They are responsible for the structure of cell membranes. D) They store and transmit genetic information. Show Answer Correct Answer: D) They store and transmit genetic information. 39. What is the relationship between a protein, the cell, and DNA? A) DNA is produced by protein which is produced in the cell. B) Protein is composed of DNA which is produced in the cell. C) DNA controls the production of protein in the cell. D) A cell is composed of DNA and protein. Show Answer Correct Answer: C) DNA controls the production of protein in the cell. 40. Builds cells and muscles A) Carbohydrates. B) Nucleic acids. C) Proteins. D) Lipids. Show Answer Correct Answer: C) Proteins. 41. What biomolecule is important for long term energy storage, provides insulation, and is an important component of the cell membrane? A) Proteins. B) Nucleic Acids. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: C) Lipids. 42. This biomolecule is important in storing energy in the body. A) Lipid. B) Carbohydrate. C) Nucleic Acid. D) Protein. Show Answer Correct Answer: B) Carbohydrate. 43. 1 .During acetylation of glucose it needs, v moles of.acetic anhydride. The value of x would be A) 3(. B) 1. C) 5. D) 4. Show Answer Correct Answer: C) 5. 44. The polymer called Lipids are made of the monomers ..... A) Glucose/Monosaccharides. B) Fatty Acids. C) Nucleic Acids. D) Amino Acids. Show Answer Correct Answer: B) Fatty Acids. 45. On a nutrition label, what do I need a lot of if I need quick energy? A) Total Carbohydrates. B) Trans Fat. C) Protein. D) Saturated Fat. Show Answer Correct Answer: A) Total Carbohydrates. 46. Three important polysaccharides made up of glucose monomers are- A) Chitin, Glycogen, Starch. B) RNA, DNA, Starch. C) Starch, Glycogen, Cellulose. D) Sucrose, Lactose, maltose. Show Answer Correct Answer: C) Starch, Glycogen, Cellulose. 47. Which biomolecule has amino acids as their monomer? A) Protein. B) Carbohydrate. C) Lipid. D) Nucleic acid. Show Answer Correct Answer: A) Protein. 48. A scientist examines the source of the carbon atoms found in a person's breath. Which food substances are most likely the source? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: C) Carbohydrates. 49. What is the solubility of lipids in water such as wax and fats? A) SOLUBLE. B) INSOLUBLE. C) All the above. D) None of the above. Show Answer Correct Answer: B) INSOLUBLE. 50. What 3 letters do enzymes typically end in? A) -ese. B) -tic. C) -ose. D) -ase. Show Answer Correct Answer: D) -ase. 51. The monomers of nucleic acids are A) Nucleotides. B) Amino Acids. C) Monosaccharides. D) Fatty Acids. Show Answer Correct Answer: A) Nucleotides. 52. Provides quick energy A) Lipids. B) Proteins. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: C) Carbohydrates. 53. What role do enzymes play in the body? A) Provide insulation. B) Transmit genetic information. C) Speed up chemical reactions. D) Store energy. Show Answer Correct Answer: C) Speed up chemical reactions. 54. What is the main purpose of enzymes inside of living cells? A) To store energy for later use by the cell. B) To repel water from the cell's surface. C) To provide cells with structure and support. D) To speed up and direct chemical reactions. Show Answer Correct Answer: D) To speed up and direct chemical reactions. 55. How are the functions of a carbohydrate and a lipid similar? A) Both are a source of energy. B) Both are replicated during meiosis. C) Both lower the activation energy of reactions. D) Both dissolve nutrients in the digestive system. Show Answer Correct Answer: A) Both are a source of energy. 56. Which biomolecule primarily makes up the cell membrane structure? A) Proteins. B) Nucleic Acids. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: C) Lipids. 57. Glucose on oxidation with Br2(aq) gives A) Gluconic acid. B) Meso-oxalic acid. C) Tartaric acid. D) Sachharic acid. Show Answer Correct Answer: A) Gluconic acid. 58. One function of lipids is to store energy. What is another function of lipids in the human body? A) To make energy from the sun. B) To provide quick energy for the cell. C) To control chemical reactions. D) To form plasma membranes. Show Answer Correct Answer: D) To form plasma membranes. 59. What is the role of proteins in the structure of cells and tissues? A) Proteins have no role in the structure of cells and tissues. B) Proteins are responsible for the production of energy in cells and tissues. C) Proteins provide structural support to cells and tissues. D) Proteins are only found in the extracellular matrix of cells and tissues. Show Answer Correct Answer: C) Proteins provide structural support to cells and tissues. 60. Its major function is protein synthesis? A) RNA. B) DNA. C) Polysaccharide. D) Lipids. Show Answer Correct Answer: A) RNA. ← 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