This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 9 Biomolecules – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 16 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which biomolecule offers structural support to plants and animals with exoskeleton? A) Proteins. B) Nucleic Acids. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: D) Carbohydrates. 2. Monosaccharides are the building blocks of which group of biomolecules? A) Protein. B) Lipid. C) Carbohydrate. D) Nucleic acid. Show Answer Correct Answer: C) Carbohydrate. 3. Bowhead whales can have a specialized layer of blubber up to 30 cm's thick. This acts as a special insulation that traps the heat their muscles create from movement. What biomolecule is the blubber primarily made of? A) Nucleic Acids. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. 4. The 20 different common amino acids have different- A) 1$^{o}$ structure. B) Peptide bonds. C) R-groups. D) Acid groups. Show Answer Correct Answer: C) R-groups. 5. Which word means "to build or make" ? A) Synthesis. B) Catalyze. C) Denature. D) Digestion. Show Answer Correct Answer: A) Synthesis. 6. Which statement BEST explains why enzymes bind to specific substrates? A) An enzyme can be inhibited so its active site is altered. B) Enzyme-substrate binding is based on size so only large enzymes can bind to large substrates. C) Different amino acid sequences cause variations in the shapes of an enzyme's active sites. D) An enzyme folds differently in the presence of different substrates. Show Answer Correct Answer: C) Different amino acid sequences cause variations in the shapes of an enzyme's active sites. 7. What is the monomer for a protein? A) Nucleotide. B) Amino Acid. C) Monosaccharide. D) Triglyceride. Show Answer Correct Answer: B) Amino Acid. 8. True or False. Wilting is when a plant loses turgor pressure. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Which biomolecule provides quick energy for cells and also provides materials that plants can use for structure/support in their cell wall? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 10. Which biomolecules act as energy storage for the cell and also cushions and insulates organs? A) Carbohyrdates. B) Nucleic Acids. C) Lipids. D) Proteins. Show Answer Correct Answer: C) Lipids. 11. Assertion:D-(+)-Glucose is levorotatory sugarReason:D in glucose correlated to (+)isomer of glyceraldehyde. 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: D) Both A & R are wrong. OR A is wrong & R is correct. 12. A compound that contains carbon and is associated with life A) Inorganic compound. B) Organic compound. C) All the above. D) None of the above. Show Answer Correct Answer: B) Organic compound. 13. The main function of lipids are: A) Storage of genetic material. B) Long term energy (ATP). C) Growth and Repair. D) Short term energy (ATP). Show Answer Correct Answer: B) Long term energy (ATP). 14. Each of the following is a type of biomolecule except- A) A lipid. B) A protein. C) A peptide bond. D) A carbohydrate. Show Answer Correct Answer: C) A peptide bond. 15. Which is a form of simple sugar carbohydrate that is an important source of energy in living organisms. A) DNA. B) Fatty Acid. C) Enzyme. D) Glucose. Show Answer Correct Answer: D) Glucose. 16. Monomers are joined by the process of ..... A) Dehydration Synthesis. B) Hydrolysis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Dehydration Synthesis. 17. (question 3) Which biomolecule is responsible for insulation and energy storage? A) Protein. B) Nucleic Acid. C) Carbohydrate. D) Lipid. Show Answer Correct Answer: D) Lipid. 18. Which type of biomolecule makes up cell membranes? A) Lipids. B) Carbohydrates. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: A) Lipids. 19. I have involvement in building muscle A) Carbohydrates. B) Nucleic Acids. C) Proteins. D) Lipids. Show Answer Correct Answer: C) Proteins. 20. What is the functions of lipids? A) Builds muscles, skin, enzymes. B) Quick source of energy. C) Stores energy, insulation, protection, waterproofing. D) Stores genetic information. Show Answer Correct Answer: C) Stores energy, insulation, protection, waterproofing. 21. Which of the following answers links a biomolecule with one of its proper functions? A) Lipids-Store genetic information. B) Nucleic Acids-Catalyze reactions. C) Proteins-long term energy storage. D) Carbohydrates-short term energy storage. Show Answer Correct Answer: D) Carbohydrates-short term energy storage. 22. Which biomolecule is commonly known as fats? A) Proteins. B) Carbohydrates. C) Nucleic acids. D) Lipids. Show Answer Correct Answer: D) Lipids. 23. What biomolecule is responsible for immune support such as antibodies? A) Nucleic Acid. B) Carbohydrate. C) Protein. D) Lipid. Show Answer Correct Answer: C) Protein. 24. The monomer for ..... is nucleotide. A) Carbohydrates. B) Proteins. C) Nucleic Acids. D) Lipids. Show Answer Correct Answer: C) Nucleic Acids. 25. What common elements are found in carbohydrates and lipids according to the mnemonic? A) Carbon, Hydrogen, Oxygen. B) Carbon, Nitrogen, Phosphorus. C) Carbon, Hydrogen, Nitrogen. D) Hydrogen, Oxygen, Phosphorus. Show Answer Correct Answer: A) Carbon, Hydrogen, Oxygen. 26. What biomolecules cannot be stored for later use? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: C) Proteins. 27. Which biomolecule does the subunit amino acids belong to? A) Proteins. B) Lipids. C) Carbs. D) Nucleic Acids. Show Answer Correct Answer: A) Proteins. 28. Which biomolecules serve as the main sources of energy for cells? A) Carbohydrates. B) Nucleic acids. C) Lipids. D) Proteins. Show Answer Correct Answer: A) Carbohydrates. 29. What are the two types of nucleic acids found in living organisms? A) Protein and Lipid. B) Carbohydrate and Enzyme. C) ATP and ADP. D) DNA and RNA. Show Answer Correct Answer: D) DNA and RNA. 30. What suffix is used in the names of most carbohydrates? (a) A) -ase. B) A.-ose. C) -yme. D) -nic. Show Answer Correct Answer: B) A.-ose. 31. How can glucose be used to synthesize other macromolecules? A) Break down other macromolecules into S, N, and P Use these elements to make glucose. B) Break down glucose into S, N, and P. Use these elements to make other macromolecules. C) Break down other macromolecules into O, H and C. Use these elements to make glucose. D) Break down glucose into O, H, and C. Use these elements to make other macromolecules. Show Answer Correct Answer: D) Break down glucose into O, H, and C. Use these elements to make other macromolecules. 32. Which of the following is NOT a lipid? A) Oils. B) Waxes. C) Fats. D) Proteins. Show Answer Correct Answer: D) Proteins. 33. A monosaccharide is the monomer for which biomolecule: A) Carbohydrate. B) Protein. C) Nucleic Acid. D) Lipid. Show Answer Correct Answer: A) Carbohydrate. 34. Which biomolecule polymers are held together by peptide bonds? A) Proteins. B) Nucleic Acids. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: A) Proteins. 35. Assertion:Fructose reduces tollens reagent.Reason:Fructose contains a ketonic group in its structure. 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 correc. Show Answer Correct Answer: B) Both A & R are correct but R is not the correct explanation. 36. A supplement claims to help build muscle and provide energy. Which two biomolecules does this supplement claim to have? A) Carbohydrates and lipids. B) Protein and carbohydrates. C) Nucleic acids and carbohydrates. D) Lipids and nucleic acids. Show Answer Correct Answer: B) Protein and carbohydrates. 37. Function:Stored Energy A) Lipid. B) Protein. C) Carbohydrate. D) Nucleic Acid. Show Answer Correct Answer: A) Lipid. 38. The sugar present in milk is A) Sucrose. B) Lactose. C) Glucose. D) Maltose. Show Answer Correct Answer: B) Lactose. 39. Imagine Nora, Arjun, and David are planning an epic, all-night study marathon. They're brainstorming about the perfect snack to keep their energy levels high. Which biomolecule should they be looking to munch on for that sustained energy boost? A) Lipids. B) Carbohydrates. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: B) Carbohydrates. 40. Carbohydrates are necessary for chemical reactions in our body. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 41. Biomolecules are considered ..... A) Synthetic monomers. B) Natural monomers. C) Synthetic polymers. D) Natural polymers. Show Answer Correct Answer: D) Natural polymers. 42. Which biomolecule includes fats, such as triglycerides, oils, waxes, and steroids (cholesterol); insoluble in water; provides energy storage, insulation, part of cell membrane, and hormones A) Lipids. B) Carbohydrate. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: A) Lipids. 43. Ice is less dense than water A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 44. What is the building block of carbohydrates? A) Fatty acids. B) Nucleotides. C) Monosaccharides. D) Amino acids. Show Answer Correct Answer: C) Monosaccharides. 45. What is an example of a food that is high in protein? A) Bread. B) Peanut butter. C) Pasta. D) None of the above. Show Answer Correct Answer: B) Peanut butter. 46. The monomer for a lipid is: A) Fatty acid. B) Amino acid. C) Monosaccharide. D) Nucleotide. Show Answer Correct Answer: A) Fatty acid. 47. What are monosaccharides? A) Protein. B) Double sugar. C) Nucleic acid. D) Single sugar. Show Answer Correct Answer: D) Single sugar. 48. Which biomolecule contains nucleotides as their building block? A) Lipids. B) Protein. C) Nucleic Acid. D) Carbohydrate. Show Answer Correct Answer: C) Nucleic Acid. 49. Polymer's split apart to form ..... , by ..... A) Monomers, dehydration synthesis. B) Amino acids, hydrolysis. C) Amino acids, dehydration synthesis. D) Monomers, hydrolysis. Show Answer Correct Answer: D) Monomers, hydrolysis. 50. A sugar that is a disaccharide is made up of how many sugars? A) One. B) Two. C) More than two. D) None of the above. Show Answer Correct Answer: B) Two. 51. I make up cell membranes. A) Proteins. B) Carbohydrates. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: C) Lipids. 52. What is a polypeptide? A) A nonfunctional group in a molecule. B) 3 nitrogenous bases. C) A long chain of amino acids. D) It makes up the tissues in organs. Show Answer Correct Answer: C) A long chain of amino acids. 53. Can food have high amounts of more than 1 type of biomolecule? A) Yes. B) No. C) Rarely. D) None of the above. Show Answer Correct Answer: A) Yes. 54. Which macromolecules stores energy? A) Lipids. B) Proteins. C) Nucleic acids. D) DNA. Show Answer Correct Answer: A) Lipids. 55. A biomolecule that insulates and protects organs is ..... A) Nucleic Acid. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: D) Lipids. 56. Which is the monomer that makes up carbohydrates? A) Amino acids. B) Nucleotides. C) Triglycerides. D) Monosaccharides. Show Answer Correct Answer: D) Monosaccharides. 57. In the context of biomolecules, what is the primary function of enzymes? A) Provide structural support. B) Catalyze biochemical reactions. C) Transport molecules. D) Store genetic information. Show Answer Correct Answer: B) Catalyze biochemical reactions. 58. Which type of carbohydrates does Benedict's solution test for? A) Simple sugars. B) Starches. C) All the above. D) None of the above. Show Answer Correct Answer: A) Simple sugars. 59. Fats, Oils and waxes are which type of biomolecule? A) Nucleic acids. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. 60. Maltose is made up of A) Two $\alpha$-D-glucose. B) Normal $\beta$-D-glucose. C) $\alpha$-and $\beta$-D-glucose. D) Fructose. Show Answer Correct Answer: A) Two $\alpha$-D-glucose. ← 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