This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 40 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which statement BEST explains why enzymes bind to specific substrates? A) An enzyme can be inhibited so its active site is altered. B) An enzyme folds differently in the presence of different substrates. C) Different amino acid sequences cause variations in the shapes of an enzyme's active sites. D) Enzyme-substrate binding is based on size so only large enzymes can bind to large substrates. Show Answer Correct Answer: C) Different amino acid sequences cause variations in the shapes of an enzyme's active sites. 2. What is the monomer for a protein? A) Monosaccharide. B) Triglyceride. C) Amino Acid. D) Nucleotide. Show Answer Correct Answer: C) Amino Acid. 3. True or False. Wilting is when a plant loses turgor pressure. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. Which biomolecule provides quick energy for cells and also provides materials that plants can use for structure/support in their cell wall? A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 5. Which biomolecules act as energy storage for the cell and also cushions and insulates organs? A) Carbohyrdates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: B) Lipids. 6. Assertion:D-(+)-Glucose is levorotatory sugarReason:D in glucose correlated to (+)isomer of glyceraldehyde. A) Both A & R are correct and R is the correct explanation. B) Both A & R are correct but R is not the correct explanation. C) A is the correct statement but R is wrong. D) Both A & R are wrong. OR A is wrong & R is correct. Show Answer Correct Answer: D) Both A & R are wrong. OR A is wrong & R is correct. 7. A compound that contains carbon and is associated with life A) Inorganic compound. B) Organic compound. C) All the above. D) None of the above. Show Answer Correct Answer: B) Organic compound. 8. The main function of lipids are: A) Storage of genetic material. B) Long term energy (ATP). C) Growth and Repair. D) Short term energy (ATP). Show Answer Correct Answer: B) Long term energy (ATP). 9. Each of the following is a type of biomolecule except- A) A carbohydrate. B) A protein. C) A lipid. D) A peptide bond. Show Answer Correct Answer: D) A peptide bond. 10. Which is a form of simple sugar carbohydrate that is an important source of energy in living organisms. A) Fatty Acid. B) Glucose. C) DNA. D) Enzyme. Show Answer Correct Answer: B) Glucose. 11. Monomers are joined by the process of ..... A) Dehydration Synthesis. B) Hydrolysis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Dehydration Synthesis. 12. (question 3) Which biomolecule is responsible for insulation and energy storage? A) Protein. B) Nucleic Acid. C) Lipid. D) Carbohydrate. Show Answer Correct Answer: C) Lipid. 13. Which type of biomolecule makes up cell membranes? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 14. I have involvement in building muscle A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: C) Proteins. 15. What is the functions of lipids? A) Quick source of energy. B) Builds muscles, skin, enzymes. C) Stores genetic information. D) Stores energy, insulation, protection, waterproofing. Show Answer Correct Answer: D) Stores energy, insulation, protection, waterproofing. 16. Which of the following answers links a biomolecule with one of its proper functions? A) Lipids-Store genetic information. B) Carbohydrates-short term energy storage. C) Nucleic Acids-Catalyze reactions. D) Proteins-long term energy storage. Show Answer Correct Answer: B) Carbohydrates-short term energy storage. 17. Which biomolecule is commonly known as fats? A) Nucleic acids. B) Proteins. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: C) Lipids. 18. What biomolecule is responsible for immune support such as antibodies? A) Nucleic Acid. B) Lipid. C) Protein. D) Carbohydrate. Show Answer Correct Answer: C) Protein. 19. The monomer for ..... is nucleotide. A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: D) Nucleic Acids. 20. What common elements are found in carbohydrates and lipids according to the mnemonic? A) Hydrogen, Oxygen, Phosphorus. B) Carbon, Hydrogen, Nitrogen. C) Carbon, Nitrogen, Phosphorus. D) Carbon, Hydrogen, Oxygen. Show Answer Correct Answer: D) Carbon, Hydrogen, Oxygen. 21. What biomolecules cannot be stored for later use? A) Nucleic acids. B) Carbohydrates. C) Lipids. D) Proteins. Show Answer Correct Answer: D) Proteins. 22. Which biomolecule does the subunit amino acids belong to? A) Lipids. B) Proteins. C) Carbs. D) Nucleic Acids. Show Answer Correct Answer: B) Proteins. 23. Which biomolecules serve as the main sources of energy for cells? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: C) Carbohydrates. 24. What are the two types of nucleic acids found in living organisms? A) Protein and Lipid. B) Carbohydrate and Enzyme. C) ATP and ADP. D) DNA and RNA. Show Answer Correct Answer: D) DNA and RNA. 25. What suffix is used in the names of most carbohydrates? (a) A) -ase. B) -nic. C) A.-ose. D) -yme. Show Answer Correct Answer: C) A.-ose. ← 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