This quiz works best with JavaScript enabled. Home > Agriculture > Biochemistry > General > Biochemistry – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 4 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are the four macromolecules? A) Proteins, nucleic acids, carbohydrates, and lipids. B) Monosaccharides, lipids, polysaccaharides, and proteins. C) RNA, DNA, proteins, and carbohydrates. D) Proteins, DNA, RNA, and steroids. Show Answer Correct Answer: A) Proteins, nucleic acids, carbohydrates, and lipids. 2. A carbohydrate that cannot be hydrolyzed to a simpler carbohydrate A) Monosaccharide. B) Polysaccharide. C) Disaccharide. D) Oligosaccharide. Show Answer Correct Answer: A) Monosaccharide. 3. Carbohydrate-containing layer at the surface of the plasma membrane A) Glycocalyx. B) Cholesterol. C) Triglyceride. D) Phospholipid. Show Answer Correct Answer: A) Glycocalyx. 4. What color forms proline and hydroxyproline containing the imino group? A) Red. B) Yellow. C) Blue. D) Green. Show Answer Correct Answer: B) Yellow. 5. Which of the following is NOT a biomolecule? A) Protein. B) Water. C) Lipid. D) Nucleic Acid. Show Answer Correct Answer: B) Water. 6. How do we get energy from food? A) Breaking chemical bonds. B) Drinking water. C) Exercising. D) Sleeping. Show Answer Correct Answer: A) Breaking chemical bonds. 7. Which term includes all others in the list? A) Monosaccharide. B) Carbohydrate. C) Polysaccharide. D) Starch. Show Answer Correct Answer: B) Carbohydrate. 8. Which of the following macromolecules is responsible for LONG-TERM energy storage? A) Lipids. B) Proteins. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: A) Lipids. 9. Which organic compounds necessary for life are formed by a sugar bondedto a phosphate group and a nitrogenous base? A) Lipids. B) Proteins. C) Nucleic acids. D) Carbohydrates. Show Answer Correct Answer: C) Nucleic acids. 10. C6H12O6 is the molecular formula for what carbohydrate? A) Sucrose. B) Glucose. C) Fructose. D) Both glucose and fructose. Show Answer Correct Answer: D) Both glucose and fructose. 11. Dinitrogenase is a ..... protein. A) Pentameric. B) Tetrameric. C) Dimeric. D) Octameric. Show Answer Correct Answer: B) Tetrameric. 12. Cellulose is a type of ..... A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic acid. Show Answer Correct Answer: A) Carbohydrate. 13. Denaturation breaks all of the following bonds except A) Ionicbonds. B) Covalent disulfide bonds. C) Hydrogen bonds. D) Peptide bond. Show Answer Correct Answer: D) Peptide bond. 14. Which level of organization is listed correctly from simple to complex? A) Organism, organ system, organ, tissue, cell. B) Cell, tissue, organ, organ system, organism. C) Cell, tissue, organ system, organ, organelle. D) Organelle, organ, organ system, tissue, cell. Show Answer Correct Answer: B) Cell, tissue, organ, organ system, organism. 15. Made up of one or more of the same type of atom A) Atom. B) Compound. C) Molecule. D) Element. Show Answer Correct Answer: D) Element. 16. What is Cellular Respiration? A) The process where cells turn sugar into energy. B) The way the cells in the human lungs help humans breathe. C) How cells die. D) None of above. Show Answer Correct Answer: A) The process where cells turn sugar into energy. 17. In an experiment, a student mixed a substrate and an enzyme at varying pH levels and then measured the amount of product produced. Which of the following questions can best be answered from this investigation? A) How do enzymes and substrates interact?. B) Are enzyme catalyzed reactions reversible?. C) A. What is the optimum pH of the enzyme being tested?. D) How does temperature impact enzyme function?. Show Answer Correct Answer: C) A. What is the optimum pH of the enzyme being tested?. 18. ..... act as catalysts to speed up chemical reactions within cells. A) Lipids. B) DNA. C) Enzymes. D) Carbohydrates. Show Answer Correct Answer: C) Enzymes. 19. An example of a nucleic acid would be ..... A) Wax. B) Fructose. C) Steroid. D) DNA. Show Answer Correct Answer: D) DNA. 20. What are the building blocks of lipids? A) Glucose. B) Amino acids. C) Fatty acids and glycerol. D) Nucleic acids. Show Answer Correct Answer: C) Fatty acids and glycerol. 21. How many atoms can a Carbon atom potentially bind to? A) 2. B) 3. C) 1. D) 4. Show Answer Correct Answer: D) 4. 22. What is the name for the mechanism of enzyme activity? A) Lock and key. B) Jigsaw puzzle. C) Hammer and nail. D) Two hands pattern. Show Answer Correct Answer: A) Lock and key. 23. Which of these has dispersion forces? A) SH2. B) NH3. C) I2. D) OCl2. Show Answer Correct Answer: C) I2. 24. Lipids store what type of energy? A) Short Term. B) Long Term. C) Endurance. D) Immediate. Show Answer Correct Answer: B) Long Term. 25. How many calories per gram do carbohydrates provide? A) 4. B) 20. C) 9. D) 1. Show Answer Correct Answer: A) 4. 26. Biomolecules are essential to all living things. Which of the following biomolecules are composed of the elements C, H, O, and N A) Nucleic acid. B) Lipid. C) Protein. D) Carbohydrate. Show Answer Correct Answer: C) Protein. 27. A polysaccharide is a polymer of which of the following biomolecules? A) Lipid. B) Protein. C) Carbohydrate. D) Nucleic acid. Show Answer Correct Answer: C) Carbohydrate. 28. Which of the following is NOT a function of proteins? A) Build tissues such as bone and muscle. B) Store and transmit heredity. C) Control the rate of reactions and regulate cell processes. D) Help to fight disease. Show Answer Correct Answer: B) Store and transmit heredity. 29. The part of the enzyme that the substrate bonds to is called the ..... A) Bond site. B) Active site. C) Activation energy. D) Peptide bond. Show Answer Correct Answer: B) Active site. 30. Van der Waals forces are dependent on the ..... between atoms or molecules A) Distance. B) Viscosity. C) Magnetic force. D) Gravitational force. Show Answer Correct Answer: A) Distance. ← PreviousNext →Related QuizzesBiochemistry QuizzesAgriculture QuizzesBiochemistry Quiz 1Biochemistry Quiz 2Biochemistry Quiz 3Biochemistry Quiz 5Biochemistry Quiz 6Biochemistry Quiz 7Biochemistry Quiz 8Biochemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books