This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What does an enzyme do for the activation energy? A) It raises it. B) It slows it down. C) It speeds it up. D) It reduces it. Show Answer Correct Answer: D) It reduces it. 2. A growth response in plants is called a- A) Stimuli. B) Photosynthesis. C) Homeostasis. D) Tropism. Show Answer Correct Answer: D) Tropism. 3. Starch from food is a source of energy for organisms. Starch is a type of- A) Protein. B) Vitamin. C) Nucleotide. D) Carbohydrate. Show Answer Correct Answer: D) Carbohydrate. 4. Which biomolecule is primarily responsible for storing genetic information in living organisms? A) Proteins. B) Carbohydrates. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: D) Nucleic Acids. 5. Glycerol is- A) Tetrahydroxy propane. B) Trihydroxy butane. C) Trihydroxy propane. D) Tetrahydroxy butane. Show Answer Correct Answer: C) Trihydroxy propane. 6. Enzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means? A) Reducing the number of products. B) Reducing the activation energy. C) Increasing the temperature of the cell. D) Increasing the concentration of reactants. Show Answer Correct Answer: B) Reducing the activation energy. 7. Research has indicated that diets high in fiber may reduce the risk of ..... A) Colon cancer. B) Cardiac disease. C) Hemorrhoid. D) All of the choices. Show Answer Correct Answer: D) All of the choices. 8. What is the most common monosaccharide? A) Cellulose. B) Triglycerides. C) Starches. D) Glucose. Show Answer Correct Answer: D) Glucose. 9. Which of the following amino acids is optically inactive? A) Lysine. B) Tyrosine. C) Alanine. D) Glycine. Show Answer Correct Answer: D) Glycine. 10. Which answer contains the four macromolecules of life? A) Proteins, carbohydrates, lipids, nucleic acids. B) Proteins, vitamins, mineral, lipids. C) Proteins, amino acids, nucleic acids, carbohydrates. D) Proteins, vitamins, minerals, carbohydrates. Show Answer Correct Answer: A) Proteins, carbohydrates, lipids, nucleic acids. 11. The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements? A) Enzymes function best at a specific temperature. B) The body needs to be warm to prevent hypothermia. C) The body is kept relatively warm to prevent too much enzyme action. D) There is no connection between the two statements. Show Answer Correct Answer: A) Enzymes function best at a specific temperature. 12. ..... are helpful for long term energy storage. A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic acids. Show Answer Correct Answer: C) Lipids. 13. What are the monomers of a lipid called? A) Fatty Acids & Glycerol. B) Nucleotides. C) Amino Acids. D) Monosaccharides. Show Answer Correct Answer: A) Fatty Acids & Glycerol. 14. Carbon, hydrogen, oxygen, nitrogen, and phosphorous make up which biomolecule? A) Protein. B) Carbohydrates. C) Lipids. D) Nucleic acid. Show Answer Correct Answer: D) Nucleic acid. 15. Which of the following is an example of an external stimulus? A) Thirst. B) Eating. C) Temperature. D) Sweating. Show Answer Correct Answer: C) Temperature. 16. What does the element H stand for? A) Helium. B) Hydrogen. C) Mercury. D) Hassium. Show Answer Correct Answer: B) Hydrogen. 17. Function:build/repair A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: C) Protein. 18. Removing water from a substance to put things together would be considered ..... A) Glycerol. B) Dehydration synthesis. C) Hydrolysis. D) Polypeptidis. Show Answer Correct Answer: B) Dehydration synthesis. 19. Which monomers is NOT correctly match with its polymers? A) Fatty acids and glycerol:lipids. B) Amino acids:proteins. C) Glucose:carbohydrates. D) Fatty acids and a glycerol:nucleic acids. Show Answer Correct Answer: D) Fatty acids and a glycerol:nucleic acids. 20. Which of the following macromolecules is correctly paired with its function? A) Protein-short-term energy storage. B) Nucleic acids-genetic information (DNA/RNA). C) Lipids-speed up chemical reactions. D) Lipids-short-term energy storage. Show Answer Correct Answer: B) Nucleic acids-genetic information (DNA/RNA). 21. Which of the following is a monosaccharide? A) Chitin. B) Sucrose. C) Starch. D) Glucose. Show Answer Correct Answer: D) Glucose. 22. The Biuret Test will test for the presence of ..... A) Protein. B) Lipids. C) Starch. D) Simple Sugars. Show Answer Correct Answer: A) Protein. 23. The number of disulphide linkage in insuline is ..... A) 3. B) 4. C) 1. D) 2. Show Answer Correct Answer: A) 3. 24. Your friend is feeling irritable, lightheaded and dizzy. They are also feeling a bit of confusion and brain fog. Which biomolecule would you recommend your friend consume? A) Protein. B) Carbohydrates. C) Nucleic Acid. D) Milk. Show Answer Correct Answer: B) Carbohydrates. 25. Which biomolecule is primarily responsible for catalyzing biochemical reactions? A) Carbohydrates. B) Lipids. 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