This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following determines an enzyme's effectiveness? A) Heat. B) PH (acidic or basic). C) Not enough enzymes; too many substrates. D) All are correct. Show Answer Correct Answer: D) All are correct. 2. Which biomolecule is a key part of the cell membrane and is needed in the formation of hormones? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 3. What type of biomolecule is cholesterol? A) Protein. B) Lipid. C) Carbohydrate. D) Nucleic acid. Show Answer Correct Answer: B) Lipid. 4. If a compound contains 2 monosaccharide units, then it is described as ..... A) Derived monosaccharide. B) Polysaccharide. C) Disaccharide. D) Pentose sugar. Show Answer Correct Answer: C) Disaccharide. 5. One function of carbohydrates is to ..... A) Maintain blood flow. B) Store and transport genetic material. C) Catalyze chemical reactions. D) Provide structural framework of cell walls. Show Answer Correct Answer: D) Provide structural framework of cell walls. 6. CHON with a Variable R group A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic acid. Show Answer Correct Answer: C) Protein. 7. Amino acids and sugars are both required by animals to maintain their health. Without a diet containing both of these, animals cannot survive. Amino acids are obtained by animals when they digest- A) Carbohydrates. B) Proteins. C) Nucleic acids. D) Lipids. Show Answer Correct Answer: B) Proteins. 8. Which biomolecule makes up your genes? A) Carbohydrate. B) Lipid. C) Nucleic Acid. D) Protein. Show Answer Correct Answer: C) Nucleic Acid. 9. (question 9) 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) Nucleic Acid. B) Lipids. C) Carbohydrate. D) Protein. Show Answer Correct Answer: B) Lipids. 10. (question 13) All polymers are made up of ..... A) Monosaccharides. B) Monomers. C) Proteins. D) None of these. Show Answer Correct Answer: B) Monomers. 11. A diabetic person carries a packet of glucose with him always, because A) Glucose increases the blood sugar level slowly. B) Glucose reduces the blood sugar level. C) Glucose increases the blood sugar level almost instantaneously. D) Glucose reduces the blood sugar level slowly. Show Answer Correct Answer: C) Glucose increases the blood sugar level almost instantaneously. 12. What is the monomer that makes up nucleic acids? A) Monosaccharides. B) Fatty acids. C) Nucleotides. D) Amino acids. Show Answer Correct Answer: C) Nucleotides. 13. What is the primary energy source for most cells A) Lactose. B) Fructose. C) Sucrose. D) Glucose. Show Answer Correct Answer: D) Glucose. 14. Proteins are organic molecules. What atoms do proteins have? A) Carbon, Phosphorus, and Uranium. B) Only Carbon. C) Only Helium. D) Carbon, Hydrogen, Oxygen and Nitrogen. Show Answer Correct Answer: D) Carbon, Hydrogen, Oxygen and Nitrogen. 15. The monomer for a protein is: A) Amino acid. B) Fatty acid. C) Monosaccharide. D) Nucleotide. Show Answer Correct Answer: A) Amino acid. 16. ..... are small individual molecules that when linked together form a ..... A) Polymersmonomer. B) Carbohydrateslipid. C) Proteinsnucleic acid. D) Monomerspolymer. Show Answer Correct Answer: D) Monomerspolymer. 17. What is the primary function of carbohydrates in living organisms? A) Energy storage. B) Genetic information storage. C) Catalyzing reactions. D) Structural support. Show Answer Correct Answer: A) Energy storage. 18. What element needs to be present to consider a molecule organic? A) Nitrogen. B) Oxygen. C) Carbon. D) Phosphorous. Show Answer Correct Answer: C) Carbon. 19. Which macromolecule has the monomer amino acid? A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: C) Protein. 20. On a nutrition label, which category is lipids? A) Dietary fiber. B) Protein. C) Total fats. D) Total sugars. Show Answer Correct Answer: C) Total fats. 21. Which macromolecule is responsible for Quick energy? A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic acid. Show Answer Correct Answer: A) Carbohydrate. 22. Stores energy in plants as starch A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: A) Carbohydrates. 23. Which best represents a long term energy storage molecule in animals? A) Cellulose. B) Cholesterol. C) Glycogen. D) None of the above. Show Answer Correct Answer: C) Glycogen. 24. What molecule is released during dehydration synthesis? A) H2O. B) O2. C) CO2. D) C6H12O6. Show Answer Correct Answer: A) H2O. 25. Which of the following biomolecules is primarily responsible for storing and transmitting genetic information? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: D) Nucleic acids. ← PreviousNext →Related 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 9Class 11 Biology Chapter 9 Biomolecules Quiz 10Class 11 Biology Chapter 9 Biomolecules Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books