This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 29 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 29 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Transports molecules A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: C) Proteins. 2. What is the main function of carbohydrates in the body? A) Support immune system. B) Build muscle mass. C) Regulate body temperature. D) Provide energy. Show Answer Correct Answer: D) Provide energy. 3. Which of the following macromolecules is a prominent part of animal tissue that functions in helping animals conserve heat? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 4. Made of monomers A) Monomer. B) Polymer. C) All the above. D) None of the above. Show Answer Correct Answer: B) Polymer. 5. Which biomolecuels contain only the elements carbon, hydrogen and oxygen? A) Lipids and proteins. B) Carbohydrates and lipids. C) Proteins and nucleic acids. D) Nucleic acids and carbihydrates. Show Answer Correct Answer: B) Carbohydrates and lipids. 6. Why does the shape of an enzyme determine its function? A) Enzymes are specific to substrates (lock and key). B) Enzymes can work with any substrate. C) Enzymes are activated by molecules. D) Enzymes are found everywhere. Show Answer Correct Answer: A) Enzymes are specific to substrates (lock and key). 7. $\alpha$-D (+) glucose and $\beta$-D (+)-glucose are A) Enantiomers. B) Geometrical isomers. C) Anomers. D) Epimers. Show Answer Correct Answer: C) Anomers. 8. Which of these provides long term energy? A) Nucleic acid. B) Carbohydrates. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. 9. The word "saccharide" means: A) Sugar. B) Protein. C) Amino acids. D) None of the above. Show Answer Correct Answer: A) Sugar. 10. Lipids / carbohydrates are also called fats. A) Lipids. B) Carbohydrates. C) All the above. D) None of the above. Show Answer Correct Answer: A) Lipids. 11. The monomer of carbohydrates is called A) Monomer. B) Monosugar. C) Monosaccharide. D) Polymer. Show Answer Correct Answer: C) Monosaccharide. 12. Carbohydrates are more easily metabolized than lipids. However, on a gram-for-gram basis, lipids provide cells with more- A) Nitrogen. B) Proteins. C) Structure. D) None of the above. Show Answer Correct Answer: C) Structure. 13. ..... is a synonym for a protein polymer. A) Polysaccharide. B) Polypeptide. C) Polygon. D) Polyprotein. Show Answer Correct Answer: B) Polypeptide. 14. 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. (Signs of low blood sugar)What biomolecule does your friend need? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 15. Which biomolecule is the main source of energy for cellular processes? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 16. Beans and green leafy vegetables are also good source of ..... A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: C) Proteins. 17. Cellulose is found in plant cell walls and is a ..... A) Protein. B) Carbohydrate. C) Lipid. D) Nucleic acid. Show Answer Correct Answer: B) Carbohydrate. 18. Which is NOT an example of a Lipid? A) Broccoli. B) Milk. C) Cheese. D) Butter. Show Answer Correct Answer: A) Broccoli. 19. 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 biomolecule does your friend need? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 20. Which group of biomolecules contains glycerol and fatty acids? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 21. Which among the following is NOT an element of an amino acid A) Amino group. B) Carboxyl group. C) Alpha carbon. D) None in the choices. Show Answer Correct Answer: D) None in the choices. 22. ATP is a special type of ..... that is the energy currency of the cell. A) Amino Acid. B) Monosaccharide. C) Enzyme. D) Nucleotide. Show Answer Correct Answer: D) Nucleotide. 23. This biomolecule stores long term energy and an important component of plasma membrane in our cells. A) Lipids. B) Proteins. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: A) Lipids. 24. The ..... mechanism describes how each substrate must fit into the enzyme. A) Lock and key. B) Hammer and nail. C) Jigsaw puzzle. D) Seesaw. Show Answer Correct Answer: A) Lock and key. 25. Proteins are made up of ..... A) Ammonia. B) Carbonic acid. C) Amino acid. D) Sulfuric acid. Show Answer Correct Answer: C) Amino acid. ← 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