This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 9 Biomolecules – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 9 Biomolecules Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are the four major macromolecules? A) Carbohydrates, proteins, lipids, and water. B) Carbohydrates, proteins, water, and alkaines. C) Carbohydrates, proteins, lipids, and nucleic acids. D) Carbohydrates, proteins, lipids, and amini acids. Show Answer Correct Answer: C) Carbohydrates, proteins, lipids, and nucleic acids. 2. Which of the following does not correctly match the biomolecule with its monomer (building block)? A) Protein:is made up of amino acids. B) Nucleic acid:is made up of amino acids. C) Nucleic acid:is made up of nucleotides. D) Carbohydrate:is made up of monosaccharides. Show Answer Correct Answer: B) Nucleic acid:is made up of amino acids. 3. Which biomolecule is made of nucleotides and contain you DNA & RNA? A) Carbohydrate. B) Lipids. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: D) Nucleic Acid. 4. Which one is NOT a lipid? A) Nitrogen. B) Fat. C) Olive oil. D) Butter. Show Answer Correct Answer: A) Nitrogen. 5. ..... requires water as a reactant. A) Dehydration Synthesis. B) Hydrolysis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Hydrolysis. 6. Which of the following sets consists only of essential amino acids? A) Alanine, tyrosine, cysteine. B) Leucine, lysine, valine. C) Alanine, Glutamine, lysine. D) Leucine, proline, glycine. Show Answer Correct Answer: B) Leucine, lysine, valine. 7. NUCLEOTIDES ARE THE BUILDING BLOCKS OF ..... A) CARBOHYDRATES. B) LIPIDS. C) NUCLEIC ACIDS. D) PROTEINS. Show Answer Correct Answer: C) NUCLEIC ACIDS. 8. Which organic macromolecules are composed of chains of amino acids that join to form the structural components of organisms. A) Carbohydrates. B) Proteins. C) Amino Acids. D) Lipids. Show Answer Correct Answer: B) Proteins. 9. Which biomolecules contains your genetic information? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic Acids. Show Answer Correct Answer: D) Nucleic Acids. 10. What is the main role of carbohydrates in the body? A) Store genetic information. B) Provide energy. C) Catalyze reactions. D) Form cell membranes. Show Answer Correct Answer: B) Provide energy. 11. Which biomolecule has thousands of different varieties and is responsible for performing many jobs in the body? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: C) Proteins. 12. The prefix "poly" means ..... A) One. B) Two. C) Many. D) Want a cracker. Show Answer Correct Answer: C) Many. 13. Which group of biomolecules is involved in storing and transmitting genetic (hereditary) material? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: D) Nucleic acids. 14. When protein loses its 3D shape it's nonfunctional and is said to be A) Essential. B) Structural. C) Denatured. D) Saturated. Show Answer Correct Answer: C) Denatured. 15. Which elements are found in lipids? A) C, H, O, N, P. B) C, H, O, N. C) C, H, O. D) None of the above. Show Answer Correct Answer: C) C, H, O. 16. Function:cell membrane A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: B) Lipid. 17. Which of the following groups are all monosaccharides? A) Glycogen, cellulose and starch. B) Glucose, galactose and fructose. C) Maltose, lactose and fructose. D) Sucrose, glucose and fructose. Show Answer Correct Answer: B) Glucose, galactose and fructose. 18. What type of biomolecule is primarily responsible for storing genetic information? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: D) Nucleic acids. 19. ..... is a synonym for protein and is its polymer. A) Polysaccharide. B) Polypeptide. C) Polymerose. D) Polyprotein. Show Answer Correct Answer: B) Polypeptide. 20. The primary structure of a protein is determined by the A) R group. B) Number of peptide bonds. C) Order of amino acids. D) Number of attached functional groups. Show Answer Correct Answer: C) Order of amino acids. 21. Mechanical digestion A) Is a physical process. B) Is not a physical process. C) Does not break down food. D) Results in a new substance. Show Answer Correct Answer: A) Is a physical process. 22. Which of the following is responsible for the alpha-helical structure of proteins? A) Hydrophobic interactions. B) Nonpolar covalent bonds. C) Ionic interactions. D) Hydrogen bonds. Show Answer Correct Answer: D) Hydrogen bonds. 23. A nitrogenous base is linked to the pentose sugar through a ..... to form a nucleoside. A) Phosphodiester bonds. B) N-glycosidic linkage. C) Hydrogen bond. D) None of the above. Show Answer Correct Answer: B) N-glycosidic linkage. 24. What are some characteristics of a positive Sudan IV result: A) The solution will separate and produce a dark pink/red ring indicating the presence of lipid. B) The solution will turn a dark brown color indicating starch. C) The solution will turn a bright blue color indicating the presence of simple sugars. D) The solution will dark purple color indicating the presence of protein. Show Answer Correct Answer: A) The solution will separate and produce a dark pink/red ring indicating the presence of lipid. 25. The monomer of a nucleic acid is called ..... A) An amino acid. B) A fatty acid. C) A monosaccharide. D) A nucleotide. Show Answer Correct Answer: D) A nucleotide. ← 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