This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The monomer of a protein is A) Monosaccharide. B) Amino Acid. C) Nucleotide. D) Triglyceride (3 Fatty Acids and 1 Glycerol). Show Answer Correct Answer: B) Amino Acid. 2. Monosaccharides combine to form ..... A) Carbhoydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: A) Carbhoydrates. 3. Where does mechanical and chemical digestion take place? A) Mouth. B) Stomach. C) Small intesting. D) Mouth and stomach. Show Answer Correct Answer: D) Mouth and stomach. 4. Beeswax is a waxy substance that is produced by bees and then harvested by humans for a variety of uses. Ancient Romans used beeswax as a waterproofing agent because it is not water-permeable. Beeswax is which of the following types of organic molecule? A) Carbohydrate. B) Lipid. C) Nucleic acid. D) Protein. Show Answer Correct Answer: B) Lipid. 5. What type of linkage is present in $\beta$pleated sheet of protein? A) Intermolecular H bonding. B) Intramolecular H bonding. C) Peptide linkage. D) Disulphide linkage. Show Answer Correct Answer: A) Intermolecular H bonding. 6. Which biomolecules contain N? A) Nucleic acids and carbohydrates. B) Carbohydrates and fatty acids. C) Nucleic acids and amino acids. D) Amino acids and carbohydrates. Show Answer Correct Answer: C) Nucleic acids and amino acids. 7. (question 15) Oils are which type of macromolecule? A) Carbohydrates. B) Lipids. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: B) Lipids. 8. Repeating units of ..... form nucleic acids (DNA and RNA) A) Fatty acids. B) Amino acids. C) Nucleotides. D) Monosaccharides. Show Answer Correct Answer: C) Nucleotides. 9. What is the primary structural component of cell membranes? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 10. Which biomolecules play a role in the immune system and in the structure of the cytoskeleton? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: C) Proteins. 11. Which of the following is the correct pair of biomolecules and their monomers? A) Carbohydrate:Fatty Acids. B) Protein:Amino acid. C) Lipid:Nucleotide. D) Nucleic Acid:DNA. Show Answer Correct Answer: B) Protein:Amino acid. 12. Which among the following elements does not belong to proteins? A) Carbon. B) Hydrogen. C) Nitrogen. D) Oxygen. E) Phosphorous. Show Answer Correct Answer: E) Phosphorous. 13. Which molecule has the highest amount of energy? A) They are equal in energy. B) ADP. C) ATP. D) None of the above. Show Answer Correct Answer: C) ATP. 14. Lipids can be digested into what smaller subunits? A) Nucleic acids. B) Amino acids. C) Fatty acids. D) Glucose. Show Answer Correct Answer: C) Fatty acids. 15. Nucleic Acids have which elements? A) Carbohydrates, Hydrogen, Nitrogen, and Phosphorus. B) Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus. C) Carbohydrates, Hydrogen, Oxygen, Nitrogen, Potassium. D) Carbon, Hydrogen, Nitrogen. Show Answer Correct Answer: B) Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus. 16. Which biomolecule helps form body structures like muscles? A) Nucleic Acid. B) Carbohydrate. C) Protein. D) Lipids. Show Answer Correct Answer: C) Protein. 17. Which biomolecule provides long term storage and insulation? A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: B) Lipid. 18. Four groups of biomolecules found in all living things are all of the following except: A) Carbohydrates. B) Lipids. C) Glutamine. D) Protein. Show Answer Correct Answer: C) Glutamine. 19. On oxidation with a mild oxidising agent like Br$_{2}$/H$_{2}$0, the glucose is oxidized to A) Saccharic acid. B) Glucaric acid. C) Gluconic acid. D) Valeric acid. Show Answer Correct Answer: C) Gluconic acid. 20. Amino Acids are the monomers of ..... A) Nucleic Acids. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: B) Proteins. 21. Which biomolecule is most abundant in the cell membrane and contributes to its fluidity? A) Proteins. B) Carbohydrates. C) Lipids. D) Nucleic acids. Show Answer Correct Answer: C) Lipids. 22. The inorganic compounds like sulphate, phosphate, etc., are found in- A) Acid soluble pool. B) Acid insoluble fraction. C) Both acid soluble pool and acid insoluble fraction. D) Not found in cellular pool. Show Answer Correct Answer: A) Acid soluble pool. 23. Both complex carbohydrates and lipids can provide energy to your body as they are broken down. However, only carbohydrates are broken down into which of the following subunits? A) Sugars. B) Amino acids. C) Nucleotides. D) Fats. Show Answer Correct Answer: A) Sugars. 24. Peptide bonds in proteins can be broken down by the enzyme peptidase. Adrian orders a hamburger and French fries for lunch. He adds cheese and mayonnaise to his hamburger and then sits down to eat lunch with his friends. Which structure would most likely result from the action of peptidase in Adrian's stomach? A) Lipids. B) Glucose. C) Nucleic Acid. D) Amino Acid. Show Answer Correct Answer: D) Amino Acid. 25. Which biomolecules transport oxygen and other substances and also form part of most organelles? A) Lipids. B) Carbohydrates. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: C) Proteins. ← PreviousNext →Related 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 8Class 11 Biology Chapter 9 Biomolecules Quiz 9Class 11 Biology Chapter 9 Biomolecules Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books