This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 9 Biomolecules – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. I am responsible for long term energy storage in mammals. A) Carbohydrate. B) Protein. C) Nucleic Acid. D) Lipid. Show Answer Correct Answer: D) Lipid. 2. Which of the following is organic? A) NaCl. B) H2O. C) H3O. D) CHO. Show Answer Correct Answer: D) 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) Monomer. B) Proteins. C) Monosaccharides. D) Polymer. Show Answer Correct Answer: A) Monomer. 6. Which biomolecule is most commonly used by cells for immediate energy? A) Carbohydrates. B) Lipids. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: A) 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) Folding of polypeptide chains into a 3D structure. B) $\alpha$-helix or $\beta$-pleated sheet. C) Sequence of amino acids. D) Association of multiple polypeptide subunits. Show Answer Correct Answer: C) 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) Protein. B) Lipid. C) Carbohydrate. D) Nucleic acid. Show Answer Correct Answer: B) 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) It is made from nuceic acids. B) It is a polypeptide. C) It is associated with living things. D) Is made fro several monomers. Show Answer Correct Answer: C) It is associated with living things. 15. Carbohydrates contain only (a), hydrogen, and oxygen A) Nitrogen. B) A. carbon. C) Phosphorus. D) Sulphur. Show Answer Correct Answer: B) A. carbon. 16. The monomer for ..... is amino acid. A) Proteins. B) Nucleic Acids. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: A) Proteins. 17. Which of the following term is correct about Enzymes A) Biocatalyst. B) Nucleic acids. C) Dinucleotides. D) Carbohydrates. Show Answer Correct Answer: A) Biocatalyst. 18. Which biomolecule is responsible for catalyzing chemical reactions in the body? A) Enzymes. B) Lipids. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: A) Enzymes. 19. Which biomolecule is primarily responsible for storing genetic information in cells? A) Lipids. B) Carbohydrates. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: C) Nucleic acids. 20. 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) Protein. B) RNA. C) Carbohydrate. D) DNA. Show Answer Correct Answer: D) DNA. 21. Which of the following is not an example of external stimuli? A) Temperature. B) Gravity. C) Thirst. D) Light. Show Answer Correct Answer: C) Thirst. 22. 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. 23. Which of the following is a monomer of proteins? A) Nucleotide. B) Fatty acid. C) Amino acid. D) Monosaccharide. Show Answer Correct Answer: C) Amino acid. 24. What are biomolecules? A) Characteristics of life. B) Nucleotides. C) Large elements. D) Molecules needed for life. Show Answer Correct Answer: D) Molecules needed for life. 25. Which biomolecule is composed of long chains of nucleotides? A) Proteins. B) Nucleic acids. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: B) Nucleic acids. 26. Enzymes are also called ..... because they speed up chemical reactions. A) Catalyst. B) Turbo. C) Analysis. D) Cartlige. Show Answer Correct Answer: A) Catalyst. 27. Which biomolecule includes fats, such as triglycerides, oils, phospholipids, or cholesterol; insoluble in water; provides energy storage, insulation, part of cell membrane, and hormones A) Nucleic Acid. B) Lipids. C) Protein. D) Carbohydrate. Show Answer Correct Answer: B) Lipids. 28. Amino acids are building blocks of what biomolecule? A) Protein. B) Nucleic Acid. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: A) Protein. 29. What does the element O stand for? A) Ornitherium. B) Obsoletium. C) Oxygen. D) Osmium. Show Answer Correct Answer: C) Oxygen. 30. Many monomers can be linked together to form ..... A) Chemical reactions. B) Building blocks. C) Polymers. D) Energy. Show Answer Correct Answer: C) Polymers. 31. Which biomolecule makes up the cell membrane and is used for long term energy storage? A) Carbohydrates. B) Nucleic acids. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. 32. Which of the following sugars are the components of lactose? A) Glucose & galactose. B) Fructose and galactose. C) Glucose and glucose. D) Glucose & fructose. Show Answer Correct Answer: A) Glucose & galactose. 33. Which of these is NOT true? A) Enzymes can only be used once in a chemical reaction. B) Extreme pH can denature enzymes. C) Enzymes can denature (change shape) when the temperature gets too high. D) Enzymes speed up chemical reactions. Show Answer Correct Answer: A) Enzymes can only be used once in a chemical reaction. 34. There are a total of ..... different amino acids A) 1. B) 4. C) 20. D) Unlimited. Show Answer Correct Answer: C) 20. 35. Starch is insoluble, yet it accumulates in large quantity in Potato tuber because A) Starch is synthesised in tubers. B) It is useful for storage. C) Translocated sucrose is polymerised here. D) Tubers respire slowly. Show Answer Correct Answer: B) It is useful for storage. 36. What is a catalyst? A) A substance that explodes. B) A substance that speeds up a reaction. C) A substance the stops a reaction. D) A substance that slows down a reaction. Show Answer Correct Answer: B) A substance that speeds up a reaction. 37. What is the best definition of the function of nucleic acids? A) They contain defense mechanisms against bacteria. B) They contain the information that makes you and makes you different from every other living thing. C) They are used as the structural components of the body (muscles and organs). D) They create the cell membrane. Show Answer Correct Answer: B) They contain the information that makes you and makes you different from every other living thing. 38. Which 2 molecules contains the elements C-H-O and function pertains to energy? A) Lipids and Protein. B) Carbohydrates and Nucleic Acids. C) Protein and Carbohydrates. D) Carbohydrates and Lipids. Show Answer Correct Answer: D) Carbohydrates and Lipids. 39. What atoms do nucleic acids have? A) C, H and S. B) C, H and N. C) C, H, O, N, and P. D) C only. Show Answer Correct Answer: C) C, H, O, N, and P. 40. Amino acids are connected with ..... bonds to form ..... A) Hydrogen; lipids. B) Hydrogen; proteins. C) Peptide; lipids. D) Peptide; proteins. Show Answer Correct Answer: D) Peptide; proteins. 41. There are ..... nitrogen bases in a codon. A) 3. B) No. C) 4. D) 2. Show Answer Correct Answer: A) 3. 42. Which of the following term refers to the combination of two types of monosaccharides? A) Monosaccharide. B) Disaccharide. C) Polysaccharide. D) None of the above. Show Answer Correct Answer: B) Disaccharide. 43. Which of the following elements is not frequently found in organic compounds? A) Carbon. B) Oxygen. C) Hydrogen. D) Chlorine. Show Answer Correct Answer: D) Chlorine. 44. Which of the following base is not present in DNA? A) Thymine. B) Uracil. C) Cytosine. D) Adenine. Show Answer Correct Answer: B) Uracil. 45. Which of the following proteins is classified as fibrous protein? A) Insulin. B) Keratin. C) Haemoglobin. D) Albumin. Show Answer Correct Answer: B) Keratin. 46. The enzyme known as 'catalase' is involved in the breakdown of hydrogen peroxide molecules into separate water and oxygen molecules. During this reaction, what happens to the 'catalase'? A) The enzyme would become products:O2 and H20. B) The enzyme would be fully used up and discarded. C) The enzyme would remain unchanged in any way. D) The enzyme would become a new type of enzyme. Show Answer Correct Answer: C) The enzyme would remain unchanged in any way. 47. Hydrogen bonds occur: A) On the ribbon (between the sugar). B) Only between A & T. C) Only between G & C. D) Between the bases. Show Answer Correct Answer: D) Between the bases. 48. Which biomolecule builds muscle tissue? A) Lipid. B) Nucleic acid. C) Carbohydrate. D) Protein. Show Answer Correct Answer: D) Protein. 49. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions. A) Lipid. B) Nucleic Acid. C) Protein. D) Carbohydrate. Show Answer Correct Answer: C) Protein. 50. The function of this biomolecule is to store genetic information. A) Protein. B) Carbohydrate. C) Lipid. D) Nucleic Acid. Show Answer Correct Answer: D) Nucleic Acid. 51. Which biomolecule transmits genetic information from one generation to the next? A) Protein. B) Nucleic acid. C) Carbohydrate. D) Lipid. Show Answer Correct Answer: B) Nucleic acid. 52. The function of this biomolecule is long term energy. A) Nucleic Acid. B) Carbohydrate. C) Protein. D) Lipid. Show Answer Correct Answer: D) Lipid. 53. The function of this biomolecule is quick and immediate energy. A) Protein. B) Nucleic Acid. C) Lipid. D) Carbohydrate. Show Answer Correct Answer: D) Carbohydrate. 54. There is a person with Albinism. This individual does not produce melanin. Melanin allows for people to be protected from the sun. Since Albinos do not produce this protein they are prone to getting sunburns. What biomolecule results in the individual having albinism? A) Lipids. B) Carbohydrates. C) Nucleic Acids. D) Proteins. Show Answer Correct Answer: C) Nucleic Acids. 55. Which of the following polymer is stored in the liver of animals? animals? A) Glycogen. B) Cellulose. C) Amylose. D) Amylopectin. Show Answer Correct Answer: A) Glycogen. 56. Which of the following is a monomer of carbohydrates? A) Starch. B) Glucose. C) Sucrose. D) Fructose. Show Answer Correct Answer: B) Glucose. 57. Which biomolecule is the key source of energy? A) Protein. B) Lipid. C) Carbohydrate. D) Nucleic Acid. Show Answer Correct Answer: C) Carbohydrate. 58. Monosaccharides that contain aldehyde as a functional group, are classified as ..... A) Pentoses. B) Aldoses. C) Hexoses. D) Ketoses. Show Answer Correct Answer: B) Aldoses. 59. An organic compound made up of one or more amino acids that is the principal component of all cells is called a ..... A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic Acid. Show Answer Correct Answer: B) Protein. 60. Repeating units of amino acids make ..... ? A) Lipids. B) Nucleic acids. C) Polysaccharides. D) Proteins. Show Answer Correct Answer: D) Proteins. ← 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