This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The bond formed between two amino acids in a protein is called: A) Glycosidic bond. B) Hydrogen bond. C) Peptide bond. D) Disulfide bond. Show Answer Correct Answer: C) Peptide bond. 2. Lactose on hydrolysis gives rise to ..... and ..... A) Glucose and Fructose. B) Glucose and Galactose. C) Glucose and Xylose. D) Glucose and Glucose. Show Answer Correct Answer: B) Glucose and Galactose. 3. The monomer of Lipids is A) Glycerol and fatty acids. B) Wax. C) Saturated fats. D) Oil. Show Answer Correct Answer: A) Glycerol and fatty acids. 4. Which two biomolecules are made up only of carbon, hydrogen, and oxygen? A) Protein and Nucleic Acid. B) Protein and Lipid. C) Carbohydrate and Lipid. D) Carbohydrate and Nucleic Acid. Show Answer Correct Answer: C) Carbohydrate and Lipid. 5. Which are examples of a carbohydrate? A) Fruit, pasta, bread. B) Fats, oils, waxes. C) Meats, enzyme, lactase, eggs. D) DNA, RNA. Show Answer Correct Answer: A) Fruit, pasta, bread. 6. Protects organs of the body A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 7. The difference of DNA and RNA is the presence of A) Uracil. B) Guanine. C) Adenine. D) Cytosine. Show Answer Correct Answer: A) Uracil. 8. Enzymes need certain environmental conditions in order to function properly. What happens when enzymes are heated to a high temperature? A) They die. B) They denature (change shape). C) They change their amino acid sequence. D) They work better. Show Answer Correct Answer: B) They denature (change shape). 9. Which macromolecule is responsible for growth and repair A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic acid. Show Answer Correct Answer: C) Protein. 10. Four most common elements that make up all living things are carbon, hydrogen, A) Nitrogen, and iron. B) Oxygen, and nitrogen. C) Calcium, and phosphorus. D) Oxygen, and iron. Show Answer Correct Answer: B) Oxygen, and nitrogen. 11. Important elements in living organisms EXCEPT A) Hydrogen. B) Carbon. C) Mercury. D) Nitrogen. Show Answer Correct Answer: C) Mercury. 12. If a complex molecule can be digested to produce monosaccharides and disaccharides, then the original molecules should be classified as which type of biomolecule? A) Lipids. B) Proteins. C) Nucleic acids. D) Carbohydrates. Show Answer Correct Answer: D) Carbohydrates. 13. In an experiment, a scientist observes that a certain biomolecule speeds up the rate of a reaction without being consumed. What type of biomolecule is this likely to be? A) Carbohydrate. B) Lipid. C) Enzyme. D) Nucleic acid. Show Answer Correct Answer: C) Enzyme. 14. One of the building blocks of lipids, the triglyceride, is composed of A) 3 Fatty Acids and 3 Glycerol. B) 1 Fatty Acid and 3 Glycerol. C) 3 Fatty Acids and 1 Glycerol. D) 1 Fatty Acid and 3 Glycerol. Show Answer Correct Answer: C) 3 Fatty Acids and 1 Glycerol. 15. Enzymes are considered to be A) Lipids. B) Carbohydrate. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: C) Protein. 16. What is the monomer for nucleic acid? A) Monosaccarides. B) Fatty Acids. C) Amino Acids. D) Nucleotides. Show Answer Correct Answer: D) Nucleotides. 17. A group of carbohydrates that cannot be hydrolyzed further to give simpler units of polyhydroxy aldehyde or ketone. A) Monosaccharide. B) Disaccharide. C) Oligosaccharide. D) Polysaccharide. Show Answer Correct Answer: A) Monosaccharide. 18. Which biomolecule does starch belong to? A) Carbohydrates. B) Lipids. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: A) Carbohydrates. 19. Lipids are the polymers of steroids A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. What is the primary function of nucleic acids? A) Energy storage. B) Building tissues. C) Genetic information storage. D) Insulation. Show Answer Correct Answer: C) Genetic information storage. 21. Which word means that an enzyme has lost its shape? A) Digestion. B) Synthesis. C) Catalyze. D) Denature. Show Answer Correct Answer: D) Denature. 22. The significance of a lipid A) Thermal insulator. B) Catalysis. C) Transmit genetic information. D) Control growth. Show Answer Correct Answer: A) Thermal insulator. 23. You are at a bakery and you see a variety of pastas and breads. Which biomolecule would you primarily find in these items? A) Lipid. B) Protein. C) Nucleic Acid. D) Carbohydrate. Show Answer Correct Answer: D) Carbohydrate. 24. Nucleotides is the monomer for A) Carbohydrates. B) Protiens. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: D) Nucleic Acids. 25. Monomers combine to form A) Polymers. B) Monomers. C) Sugars. D) Water. Show Answer Correct Answer: A) Polymers. ← 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