This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 9 Biomolecules – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which biomolecule includes Enzymes that control chemical reactions and gates that control what enters or leaves a cell? A) Carbohydrates. B) Lipids. C) Proteins. D) None of the above. Show Answer Correct Answer: C) Proteins. 2. What is the monomer of a protein A) Amino acids. B) Monosaccharides. C) Fatty acids. D) Nucleotides. Show Answer Correct Answer: A) Amino acids. 3. All of the following can cause an enzyme to work less effectively EXCEPT- A) Perfect Conditions. B) Temperature. C) Concetration (amount of) substrate. D) PH. Show Answer Correct Answer: A) Perfect Conditions. 4. The letter 'D' in carbohydrates signifies A) Diamagnetic nature. B) Mode of synthesis. C) Configuration. D) Dextrorotatory. Show Answer Correct Answer: C) Configuration. 5. DNA instructions are transcribed into ..... A) MRNA. B) RRNA. C) LRNA. D) TRNA. Show Answer Correct Answer: A) MRNA. 6. Polymers can be broken down into other polymers / monomers. A) Other polymers. B) Monomers. C) All the above. D) None of the above. Show Answer Correct Answer: B) Monomers. 7. What type of biomolecule are enzymes primarily composed of? A) Proteins. B) Nucleic acids. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: A) Proteins. 8. The part of the enzyme that the substrate bonds to is called the ..... A) Active site. B) Dehydration synthesis. C) Activation energy. D) Bond site. Show Answer Correct Answer: A) Active site. 9. It is also known as table sugar. A) Sucrose. B) Maltose. C) Lactose. D) Galactose. Show Answer Correct Answer: A) Sucrose. 10. Which of the following is a term that refers to the building blocks of all cells? A) DNA. B) Macromolecules. C) Micromolecules. D) Molecules. Show Answer Correct Answer: B) Macromolecules. 11. Genes code for which biomolecule? A) Carbohydrates. B) Protein. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: B) Protein. 12. ..... are useful for a fast source of energy. A) Nucleic acids. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: C) Carbohydrates. 13. What is the monomer for carbohydrates? A) Glucose. B) Amino acid. C) Glycerol with fatty acid. D) Nucleotide. Show Answer Correct Answer: A) Glucose. 14. Which of the following treatment will convert starch directly into glucose? A) Heating with dilute H$_{2}$SO$_{4}$. B) Heating with dilute NaOH. C) Fermentation by zymase. D) Fermentation by diastase. Show Answer Correct Answer: A) Heating with dilute H$_{2}$SO$_{4}$. 15. What type of biomolecule would cookies be considered? A) LIpids. B) Carbohydrates. C) Proteins. D) Nucleic Acid. Show Answer Correct Answer: B) Carbohydrates. 16. Which of the following is an example of an enzyme? A) Glucose. B) DNA. C) Polysaccharide. D) Lipase. Show Answer Correct Answer: D) Lipase. 17. Arachnidonic acid and palmitic acids have how many carbons in each of them- A) 18, 18. B) 16, 20. C) 16, 16. D) 20, 16. Show Answer Correct Answer: D) 20, 16. 18. What does macro-mean? A) Small. B) The study of. C) Light. D) Large. Show Answer Correct Answer: D) Large. 19. ..... are made of the elements carbon, hydrogen, oxygen, nitrogen, and phosphorus. A) Lipids. B) Nucleic acids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: B) Nucleic acids. 20. What is the function of nucleic acids in the body? A) Regulating body temperature. B) Producing energy. C) Digesting food. D) Storing and transmitting genetic information. Show Answer Correct Answer: D) Storing and transmitting genetic information. 21. Which of the following base is not present in RNA? A) Cytosine. B) Uracil. C) Adenine. D) Thymine. Show Answer Correct Answer: D) Thymine. 22. One function of carbohydrates is short term energy storage. Which other macromolecule also functions in storing energy? A) Lipid. B) Protein. C) Nucleic Acid. D) DNA. Show Answer Correct Answer: A) Lipid. 23. My category includes genetic material. A) Carbohydrates. B) Nucleic Acids. C) Proteins. D) Lipids. Show Answer Correct Answer: B) Nucleic Acids. 24. In an experiment, a scientist wants to test the effect of enzyme concentration on the rate of a reaction. Which biomolecule is the scientist most likely studying? A) Lipids. B) Nucleic Acids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: D) Proteins. 25. What does insoluble mean? A) Can make energy from the sun. B) Can be eaten. C) Can be dissolved in water. D) Can not be dissolved in water. Show Answer Correct Answer: D) Can not be dissolved in water. 26. What is function of a triglyceride A) Energy Storage. B) Make food taste better. C) Make up the cell membrane. D) Triglyceride is a made up word. Show Answer Correct Answer: A) Energy Storage. 27. (question 20) Which biomolecule has the greatest source of energy? A) Enzymes. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. 28. Which element is found in only proteins and nucleic acids? A) Nitrogen. B) Helium. C) Oxygen. D) Hydrogen. Show Answer Correct Answer: A) Nitrogen. 29. (question 7) If you want a reaction to speed up you need an ..... A) Enzyme. B) Nerve cell. C) Carbohydrate. D) Nucleic acid. Show Answer Correct Answer: A) Enzyme. 30. A nucleoside contains A) A pentose sugar. B) A purine or pyrimidine base. C) One or more phosphate group. D) All of these. E) A pentose sugar and a base but not phosphate group. Show Answer Correct Answer: E) A pentose sugar and a base but not phosphate group. 31. Which biomolecule contain your genetics? A) Nucleic Acid. B) Carbohydrate. C) Protein. D) Lipid. Show Answer Correct Answer: A) Nucleic Acid. 32. The monomers of a lipid are A) A nucleotide. B) A monosaccharide. C) An amino acid. D) A fatty acid and glycerol. Show Answer Correct Answer: D) A fatty acid and glycerol. 33. Look at the DNA sequence below.GAA TTC GCAWhat do the G and A represent in the DNA sequence? A) Phosphates. B) Nitrogen bases. C) Sugars. D) Amino acids. Show Answer Correct Answer: B) Nitrogen bases. 34. Which reagent is used to convert glucose into saccharic acid? A) Nitric acid. B) Br2/H2O. C) Ammonium hydroxide. D) Alkaline solution of iodine. Show Answer Correct Answer: A) Nitric acid. 35. C, H, O, N, P are the elements in A) Protein. B) Nucleic acid. C) Carbohydrate. D) Lipid. Show Answer Correct Answer: B) Nucleic acid. 36. All organic compounds contain atoms of which element? A) Carbon. B) Sulphur. C) Phosphorous. D) Iron. Show Answer Correct Answer: A) Carbon. 37. Which sugar is present in RNA? A) Ribose. B) Galactose. C) Glucose. D) Deoxyribose. Show Answer Correct Answer: A) Ribose. 38. Which of the following can be compared to a battery in need of recharging? A) Adenosine. B) ATP. C) ADP. D) Ribose. Show Answer Correct Answer: C) ADP. 39. What is the primary function of enzymes in biological reactions? A) Speed up chemical reactions. B) Provide structural support. C) Store genetic information. D) Transport oxygen. Show Answer Correct Answer: A) Speed up chemical reactions. 40. Which biomolecule is involved in the storage and transmission of genetic information? A) DNA. B) Protein. C) RNA. D) Carbohydrate. Show Answer Correct Answer: A) DNA. 41. A substance that speeds up a chemical reaction without being consumed or changed in the process A) Activation energy. B) Catalyst. C) Specificity. D) None of the above. Show Answer Correct Answer: B) Catalyst. 42. All amino acids must have these EXCEPT A) Amine. B) Hydrogen. C) Aldehyde. D) Carboxylic. Show Answer Correct Answer: C) Aldehyde. 43. The following information are most likely found in nutrition facts except: A) Serving size. B) Calories per serving. C) Population group of consumer. D) Percent saturated fat. Show Answer Correct Answer: C) Population group of consumer. 44. Which biomolecule contracts, transports and makes up internal cell structures A) Lipid. B) Carbohydrate. C) Nucleic acid. D) Protein. Show Answer Correct Answer: D) Protein. 45. Which of the following is not a polysaccharide? A) Chitin. B) Pectin. C) Cellulose. D) None. Show Answer Correct Answer: D) None. 46. What is the primary function of carbohydrates in cells? A) Structural support in cell membranes. B) Coding for traits. C) Major energy source. D) Long-term energy storage. Show Answer Correct Answer: C) Major energy source. 47. Which examples are a sources of energy? A) Starch, cellulose, glycogen. B) Valine, Histidine, Cysteine. C) DNA, RNA. D) Unsaturated and Saturated Fats. Show Answer Correct Answer: A) Starch, cellulose, glycogen. 48. ..... builds polymer. A) Hydrolysis. B) Dehydration Synthesis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Dehydration Synthesis. 49. Which biomolecule is the main source of energy for all living things? A) Nucleic acids. B) Lipids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: C) Carbohydrates. 50. If you want a reaction to speed up you need an ..... A) Nerve cell. B) Carbohydrate. C) Enzyme. D) Nucleic acid. Show Answer Correct Answer: C) Enzyme. 51. Which other biomolecule provides structural support to cells? A) Carbohydrates. B) Nucleic Acids. C) Lipids. D) None of the above. Show Answer Correct Answer: A) Carbohydrates. 52. Nucleotides of DNA have ..... sugar. A) Ribose. B) Deoxyribose. C) Fructose. D) Glucose. Show Answer Correct Answer: B) Deoxyribose. 53. Enzyme is a/an ..... A) Protein. B) Nucleic acid. C) Carbohydrate. D) Lipid. Show Answer Correct Answer: A) Protein. 54. The suffix "saccharide" means ..... A) Phospholipid. B) Lipid. C) Sugar. D) Protein. Show Answer Correct Answer: C) Sugar. 55. Identify the key role of nucleic acids: A) Instant energy. B) Hormone, buoyancy, forms cell membranes, insulation, energy storage. C) Transport hemoglobin, immunity, chemical reactions, regulate proteins, tissue structure. D) Store and transmit heredity, genetic information. Show Answer Correct Answer: D) Store and transmit heredity, genetic information. 56. Which of the following statements best describes a DNA molecule? A) It is a double helix. B) It contains the nitrogenous base uracil. C) It is composed of amino acids. D) It contains the sugar ribose. Show Answer Correct Answer: A) It is a double helix. 57. Which of the following levels of protein structure is often stabilized by S-S bonds? A) Primary structure. B) Secondary structure. C) Tertiary structure. D) Quaternary structure. E) Both tertiary and quaternary structures. Show Answer Correct Answer: E) Both tertiary and quaternary structures. 58. Your friend is really irritable while sitting in class. He feels lightheaded and dizzy. He is also feeling a bit of confusion and brain fog.What inferences are most realistic to make about the biomolecules in your friend's body? A) There is not enough insulation or energy storage. B) The coding information in the cell is incorrect or incomplete. C) Proteins are being broken down or reshaped. D) He is running low on fast sources of energy. Show Answer Correct Answer: D) He is running low on fast sources of energy. 59. Which biomolecule are in starches and fibers? A) Protein. B) Nucleic Acid. C) Lipid. D) Carbohydrate. Show Answer Correct Answer: D) Carbohydrate. 60. Which of the following are biomolecules? A) Proteins, lipids, carbohydrates, polymers. B) Nucleic acid, lipids, carbohydrates, monomers. C) Proteins, lipids, carbohydrates, nucleic acids. D) RNA, DNA, proteins, lipids. Show Answer Correct Answer: C) Proteins, lipids, carbohydrates, nucleic acids. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 9 Biomolecules Quiz 1Class 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books