This quiz works best with JavaScript enabled. Home > Biochemistry > General > Biochemistry – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 22 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following lists the bonds in order from weakest to strongest? A) Covalent, Hydrogen, Ionic. B) Hydrogen, Ionic, Covalent. C) Ionic, Covalent, Hydrogen. D) Hydrogen, Covalent, Ionic. Show Answer Correct Answer: D) Hydrogen, Covalent, Ionic. 2. Neutrons have a ..... charge. A) Positive. B) Negative. C) Neutral. D) None of above. Show Answer Correct Answer: C) Neutral. 3. Which of the following is not a type of lipid polymer? A) Steroids. B) Meat. C) Triglycerides. D) Phospholipids. Show Answer Correct Answer: B) Meat. 4. Water is essential to all living things. One important attribute of water allows it to maintain a constant environment within cells. Which property of water allows it to do this? A) Moderates temperature. B) Breaking of covalent bonds. C) Surface tension of water surface. D) Expansion of water when it freezes. Show Answer Correct Answer: A) Moderates temperature. 5. This particle has a neutral charge A) Electron. B) Proton. C) Neutron. D) Atom. Show Answer Correct Answer: C) Neutron. 6. What resembles the structure of the peptide bond? A) Millon's reagent. B) Biuret. C) Xanthoproteic process. D) Any of the anteriors. Show Answer Correct Answer: B) Biuret. 7. A pure substance that cannot be broken down into any other substance by chemical or physical means. There are about 100 of us shown in the Periodic Table A) Compound. B) Mixture. C) Molecule. D) Element. Show Answer Correct Answer: D) Element. 8. What is the function of proteins? A) Store genetic information. B) Store energy (long-term). C) Store energy (short-term). D) Build skin, hair, nails, muscles. Show Answer Correct Answer: D) Build skin, hair, nails, muscles. 9. All but one are the physicochemical nature of enzymes: A) They are water soluble. B) Work best at temperatures between 35-40*C. C) Have unique characteristics such as shape, specificity, and function. D) Are used up or permanently changed by the reaction. Show Answer Correct Answer: D) Are used up or permanently changed by the reaction. 10. Which lipid polymer is primary responsible for storing long-term energy in plants and animals? A) Steroids. B) Meat. C) Triglycerides. D) Phospholipids. Show Answer Correct Answer: C) Triglycerides. 11. A general definition of cohesion is the attraction of: A) Particles of the same substance. B) Particles of a different substance. C) Particles of both the same and different substances. D) Particles of neither the same or different substances. Show Answer Correct Answer: A) Particles of the same substance. 12. The metabolic machinery of the cell A) Mitochondria. B) Lysosomes. C) Inclusions. D) Organelles. Show Answer Correct Answer: D) Organelles. 13. Which of the following statements is true? RNA contains deoxyribose A) DNA is single-stranded. B) RNA is single-stranded. C) DNA contains uracil. D) RNA contains deoxyribose. Show Answer Correct Answer: B) RNA is single-stranded. 14. The polymer of monosaccharides are called ..... A) Glycerol and fatty acids. B) Nucleotides. C) Amino Acids. D) Polysaccharides. Show Answer Correct Answer: D) Polysaccharides. 15. Which type of food gives you the most proteins? A) Salad and spaghetti. B) Steak and shrimp. C) Cheese and avocados. D) Peanut butter. Show Answer Correct Answer: B) Steak and shrimp. 16. The structure of biomolecules is closely related to the functions they perform in living cells. Which statement below best illustrates this concept? A) Lipids may be saturated or unsaturated. B) Carbohydrates such as starch are long chains of sugar monomers. C) The active site of a protein enzyme precisely fits the shape of its substrate molecules. D) Proteins may be made up of chains that are folded or coiled. Show Answer Correct Answer: C) The active site of a protein enzyme precisely fits the shape of its substrate molecules. 17. Glucose is A) Fruit sugar. B) Table sugar. C) Blood sugar. D) Milk sugar. Show Answer Correct Answer: C) Blood sugar. 18. Gibbes free energy? A) G=H-TS. B) G=H+TS. C) G=H/TS. D) G=H-T/S. Show Answer Correct Answer: A) G=H-TS. 19. When water freezes the molecules form a matrix by forming hydrogen bonds and A) Sinking in water. B) Becomes more dense than water. C) Becomes less dense than water. D) Becoming more tightly packed. Show Answer Correct Answer: C) Becomes less dense than water. 20. Which of the following is not a requirement for glycolysis? A) Oxygen. B) ATP. C) NAD+. D) Glucose. Show Answer Correct Answer: A) Oxygen. ← PreviousNext →Related QuizzesBiochemistry QuizzesBiochemistry Quiz 1Biochemistry Quiz 2Biochemistry Quiz 3Biochemistry Quiz 4Biochemistry Quiz 5Biochemistry Quiz 6Biochemistry Quiz 7Biochemistry Quiz 8Biochemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books