This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Assertion:Amino acids are more soluble than corresponding haloacids.Reason:Amino acids exist as zwitter ion. 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: A) Both A & R are correct and R is the correct explanation. 2. Which biomolecule is used to build and repair body structures and to regulate body processes? A) Lipid. B) Carbohydrate. C) Protein. D) None of the above. Show Answer Correct Answer: C) Protein. 3. What will most likely happen if an appropriate enzyme is added to a chemical reaction? A) The reaction rate will increase. B) The equilibrium of the reaction will be maintained. C) The reaction rate will decrease. D) The reaction will stop. Show Answer Correct Answer: A) The reaction rate will increase. 4. The monomer for ..... is monosaccharides. A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic Acid. Show Answer Correct Answer: A) Carbohydrates. 5. The process of active transport uses ATP and this biomolecule to move materials from low to high concentrations. A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: A) Proteins. 6. What do we call the building blocks of biomolecules? A) Elements. B) Monomer. C) Function. D) Crumbling. Show Answer Correct Answer: B) Monomer. 7. "Ramachandran plot" is used to confirm the structure of A) DNA. B) RNA. C) Proteins. D) Triacylglycerides. Show Answer Correct Answer: C) Proteins. 8. Which Biomolecule can be water proofing? A) Nucleic Acids. B) Proteins. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: C) Lipids. 9. Meat and eggs are considered which biomolecules A) Protein. B) Lipids. C) Carbohydrates. D) Nucleic acid. Show Answer Correct Answer: A) Protein. 10. Nucleic acids / Carbohydrates provide proteins with specific instructions for cell growth and repair. A) Nucleic acids. B) Carbohydrates. C) All the above. D) None of the above. Show Answer Correct Answer: A) Nucleic acids. 11. Which biomolecule is one of the main sources of energy in the human body? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: A) Carbohydrates. 12. What two biomolecules make up the cell membrane? A) Glucose and Fructose. B) Carbs and Protein. C) Protein and Lipids. D) Nucleic Acids and Lipids. Show Answer Correct Answer: C) Protein and Lipids. 13. Which is used to make cell walls (cellulose)? A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: A) Carbohydrate. 14. How do lipids contribute to energy storage in the body? A) Lipids are stored in the muscles for energy storage. B) Lipids are converted into and stored as adipose tissue, which can be broken down and converted back into energy when needed. C) Lipids are broken down into glucose for energy storage. D) Lipids are converted into proteins for energy storage. Show Answer Correct Answer: B) Lipids are converted into and stored as adipose tissue, which can be broken down and converted back into energy when needed. 15. In an experiment, a scientist wants to test the effect of temperature on enzyme activity. Which biomolecule is the scientist most likely studying? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: C) Proteins. 16. People with albinism do not produce the melanin protein. Melanin allows for people to be protected from the sun and thus people with albinism are prone to severe sunburns. Which biomolecule would you infer is responsible for albinism? A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic Acid. Show Answer Correct Answer: D) Nucleic Acid. 17. Lipids have which of the following monomer: A) Glycerol & fatty acids. B) Amino acids. C) Monosaccharide. D) Nucleotide. Show Answer Correct Answer: A) Glycerol & fatty acids. 18. If I wanted to see if my new Low Carb Bread had a lot of starch in it I would use which of the following test to decide? A) Iodine Test. B) Benedict's Test. C) Sudan IV Test. D) Biuret Test. Show Answer Correct Answer: A) Iodine Test. 19. Monomers combine to form ..... through the process of ..... A) Polymers; hydrolysis. B) Polymers; dehydration synthesis. C) Monomers; hydrolysis. D) Monomers; dehydration synthesis. Show Answer Correct Answer: B) Polymers; dehydration synthesis. 20. Which are examples of proteins? A) Glucose, pasta, bread. B) Fats, oils, waxes. C) Meats, enzyme, lactase, eggs. D) DNA, RNA. Show Answer Correct Answer: C) Meats, enzyme, lactase, eggs. 21. Which biomolecule does the body use as it's first choice for an energy source? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 22. An enzyme works optimally at a pH between 1 and 3. Which best explains what will happen to this enzyme at a pH of 10? A) It will work on the same substrate as it did at a pH range of 2-4, but it will not work as well. B) It will work on a different substrate than at a pH range of 1-3. C) It will lose its original shape and work on new substrates. D) It will lose its original shape and not work on any substrate at all. Show Answer Correct Answer: D) It will lose its original shape and not work on any substrate at all. 23. Which is not true about lipids? A) They are hydrophilic. B) They are hydrophobic. C) They can be dissolved away by nonpolar solvents. D) Glycerol and fatty acids are its building blocks. Show Answer Correct Answer: A) They are hydrophilic. 24. Lipids are made of A) Monosaccharides. B) Amino acids. C) Glycerol and 3 fatty acids. D) Nucleotides. Show Answer Correct Answer: C) Glycerol and 3 fatty acids. 25. What is the difference between a plant cell and an animal cell? A) Plant cell has a cell membrane and chloroplasts. B) Planet cell has a cell wall and chloroplasts. C) Animal cell has a cell membrane and a cell wall. D) Animal cell has a cell wall and chloroplasts. Show Answer Correct Answer: B) Planet cell has a cell wall and chloroplasts. ← 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 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