This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 44 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 44 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A single unit of sugar is referred to as: A) Monosaccharide. B) Monocarbohydrate. C) Mononutrient. D) Monopolymer. Show Answer Correct Answer: A) Monosaccharide. 2. What is the relationship between a protein, the cell, and DNA? A) DNA is produced by protein which is produced in the cell. B) Protein is composed of DNA which is produced in the cell. C) DNA controls the production of protein in the cell. D) A cell is composed of DNA and protein. Show Answer Correct Answer: C) DNA controls the production of protein in the cell. 3. Builds cells and muscles A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: C) Proteins. 4. What biomolecule is important for long term energy storage, provides insulation, and is an important component of the cell membrane? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: B) Lipids. 5. This biomolecule is important in storing energy in the body. A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic Acid. Show Answer Correct Answer: A) Carbohydrate. 6. 9A. Four different nucleotides are used as building blocks of DNA. Which of the following can be used to distinguish one nucleotide from another? A) The nitrogenous base. B) The shape of the deoxyribose sugar. C) The length of the phosphate group. D) The type of fatty acid. Show Answer Correct Answer: A) The nitrogenous base. 7. 1 .During acetylation of glucose it needs, v moles of.acetic anhydride. The value of x would be A) 3(. B) 5. C) 4. D) 1. Show Answer Correct Answer: B) 5. 8. The polymer called Lipids are made of the monomers ..... A) Nucleic Acids. B) Amino Acids. C) Glucose/Monosaccharides. D) Fatty Acids. Show Answer Correct Answer: D) Fatty Acids. 9. On a nutrition label, what do I need a lot of if I need quick energy? A) Protein. B) Saturated Fat. C) Total Carbohydrates. D) Trans Fat. Show Answer Correct Answer: C) Total Carbohydrates. 10. Three important polysaccharides made up of glucose monomers are- A) Sucrose, Lactose, maltose. B) Chitin, Glycogen, Starch. C) Starch, Glycogen, Cellulose. D) RNA, DNA, Starch. Show Answer Correct Answer: C) Starch, Glycogen, Cellulose. 11. Which biomolecule has amino acids as their monomer? A) Carbohydrate. B) Nucleic acid. C) Lipid. D) Protein. Show Answer Correct Answer: D) Protein. 12. A scientist examines the source of the carbon atoms found in a person's breath. Which food substances are most likely the source? A) Lipids. B) Proteins. C) Nucleic acids. D) Carbohydrates. Show Answer Correct Answer: D) Carbohydrates. 13. What is the solubility of lipids in water such as wax and fats? A) SOLUBLE. B) INSOLUBLE. C) All the above. D) None of the above. Show Answer Correct Answer: B) INSOLUBLE. 14. What 3 letters do enzymes typically end in? A) -ose. B) -ase. C) -ese. D) -tic. Show Answer Correct Answer: B) -ase. 15. The monomers of nucleic acids are A) Monosaccharides. B) Nucleotides. C) Amino Acids. D) Fatty Acids. Show Answer Correct Answer: B) Nucleotides. 16. Provides quick energy A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: A) Carbohydrates. 17. What role do enzymes play in the body? A) Store energy. B) Speed up chemical reactions. C) Provide insulation. D) Transmit genetic information. Show Answer Correct Answer: B) Speed up chemical reactions. 18. What is the main purpose of enzymes inside of living cells? A) To store energy for later use by the cell. B) To repel water from the cell's surface. C) To provide cells with structure and support. D) To speed up and direct chemical reactions. Show Answer Correct Answer: D) To speed up and direct chemical reactions. 19. How are the functions of a carbohydrate and a lipid similar? A) Both are a source of energy. B) Both are replicated during meiosis. C) Both lower the activation energy of reactions. D) Both dissolve nutrients in the digestive system. Show Answer Correct Answer: A) Both are a source of energy. 20. Which biomolecule primarily makes up the cell membrane structure? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: B) Lipids. 21. Glucose on oxidation with Br2(aq) gives A) Gluconic acid. B) Tartaric acid. C) Sachharic acid. D) Meso-oxalic acid. Show Answer Correct Answer: A) Gluconic acid. 22. One function of lipids is to store energy. What is another function of lipids in the human body? A) To form plasma membranes. B) To make energy from the sun. C) To control chemical reactions. D) To provide quick energy for the cell. Show Answer Correct Answer: A) To form plasma membranes. 23. What is the role of proteins in the structure of cells and tissues? A) Proteins have no role in the structure of cells and tissues. B) Proteins are responsible for the production of energy in cells and tissues. C) Proteins provide structural support to cells and tissues. D) Proteins are only found in the extracellular matrix of cells and tissues. Show Answer Correct Answer: C) Proteins provide structural support to cells and tissues. 24. Its major function is protein synthesis? A) DNA. B) RNA. C) Lipids. D) Polysaccharide. Show Answer Correct Answer: B) RNA. 25. Which is a function of lipids? A) To supply cells with quick-release energy. B) To provide the body with insulation. C) To store genetic information. D) To regulate cell processes. Show Answer Correct Answer: B) To provide the body with insulation. ← 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