This quiz works best with JavaScript enabled. Home > Biochemistry > Biochemistry – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 23 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... are some functions of lipids. A) Storing energy and cell membrane structure. B) Providing actin & providing myosin. C) Cellulose structure and digestive assistance. D) Storing & transferring genetic info. Show Answer Correct Answer: A) Storing energy and cell membrane structure. 2. The basic unit of any molecule; The six common ones necessary for life are CHONPS A) Element. B) Monomer. C) Polymer. D) Compound. Show Answer Correct Answer: A) Element. 3. What is the ratio of hydrogen to oxygen in carbohydrates? A) 1:1. B) 2:1. C) 3:1. D) 4:1. Show Answer Correct Answer: B) 2:1. 4. Substances that have a pH of 7 are considered: A) Acidic. B) Basic. C) Neutral. D) None of above. Show Answer Correct Answer: C) Neutral. 5. What is the pOH of a solution that has a pH of 2? A) 10. B) 12. C) 14. D) 1. Show Answer Correct Answer: B) 12. 6. All but one are examples of Proteases? A) Pepsin. B) Trypsin. C) Tyrosinase. D) Rennin. Show Answer Correct Answer: C) Tyrosinase. 7. Which of the following subatomic particles are used between atoms to create molecules? A) Protons. B) Electrons. C) Neutrons. D) None of above. Show Answer Correct Answer: B) Electrons. 8. Nutrients that build and repair tissues and cells e.g. meat, milk, eggs. A) Fat. B) Minerals. C) Vitamins. D) Protein. Show Answer Correct Answer: D) Protein. 9. How many molecules are required to hydrolyze a polymer that is 10 monomers long? A) 10. B) 9. C) 5. D) 1. Show Answer Correct Answer: B) 9. 10. In the process of ..... polymers can be broken down into monomer pieces by the addition of water. A) Condensation Cutting. B) Dehydration Synthesis. C) Pyrolysis. D) Hydrolysis. Show Answer Correct Answer: D) Hydrolysis. 11. What is the function of carbohydrates in your body? A) Speed up chemical reactions. B) Give immediate energy. C) Help to store energy. D) Build cell walls in plants. Show Answer Correct Answer: B) Give immediate energy. 12. To which class of organic compounds do enzymes belong? A) Proteins. B) Fatty acids. C) Nucleic acids. D) Monosaccharides. Show Answer Correct Answer: A) Proteins. 13. The pH of most of your body fluids would be - A) 6.5-7.5. B) 3-4. C) 9-11. D) 12-14. Show Answer Correct Answer: A) 6.5-7.5. 14. Enzyme that catalyses the transfer of functional group of atoms from one molecule to another. This enzyme is A) Isomerases. B) Transferases. C) Oxidoreductase. D) Lyases. Show Answer Correct Answer: B) Transferases. 15. Each enzyme only has 1 substrate that will fit its active site. What is this called? A) Reusable. B) Catalyst. C) Specific. D) Fragile. Show Answer Correct Answer: C) Specific. 16. All polymers are made up of ..... A) Monosaccharides. B) Monomers. C) Proteins. D) None of these. Show Answer Correct Answer: B) Monomers. 17. It is responsible for the production of energy in the form of ATP. A) Lysosomes. B) Peroxisomes. C) Mitchondria. D) Nucleus. Show Answer Correct Answer: C) Mitchondria. 18. What is an example of a carbohydrate? A) Fish. B) Steak. C) Chicken. D) Pasta. Show Answer Correct Answer: D) Pasta. 19. Which of the following options is NOT true of the enzyme lactase? A) Lactase breaks down lactose into galactose and glucose. B) Lactase speeds up the breaking down of lactose. C) Lactase has a specific substrate called lactose. D) Lactase is an enzyme that can break down multiple sugars. Show Answer Correct Answer: D) Lactase is an enzyme that can break down multiple sugars. 20. Which property makes water molecules stick to other water molecules? A) Adhesion. B) Cohesion. C) Capillary action. D) Polarity. Show Answer Correct Answer: B) Cohesion. ← PreviousNext →Related QuizzesBiochemistry Quiz 1Biochemistry Quiz 2Biochemistry Quiz 3Biochemistry Quiz 4Biochemistry Quiz 5Biochemistry Quiz 6Biochemistry Quiz 7Biochemistry Quiz 8Biochemistry Quiz 9Biochemistry Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books