This quiz works best with JavaScript enabled. Home > Biochemistry > Biochemistry – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 20 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many amino acids exist? How many of them are present in almost all proteins? A) 300, 20. B) 200, 30. C) 300, 10. D) 200, 20. Show Answer Correct Answer: A) 300, 20. 2. Foods that are high in the organic compound "Carbohydrates" A) Meats, beans, seeds/nuts, eggs. B) Bread, candy, crackers, potatoes. C) Cheese, butter, milk, and cereal. D) Sausage, Eggs, Pancakes & syrup. Show Answer Correct Answer: B) Bread, candy, crackers, potatoes. 3. Enyzmes are a very important type of protein used to A) Build bones in skeleton. B) Send hormonal signals throughout body. C) Speed up chemical reactions. D) Photosynthesize glucose in plants. Show Answer Correct Answer: C) Speed up chemical reactions. 4. Acts as a storage of nutrients or cell products A) Nucleus. B) Ribosomes. C) Inclusions. D) Golgi Appartus. Show Answer Correct Answer: C) Inclusions. 5. A graduated cylinder measures: A) Mass. B) Volume. C) Weight. D) Force ability. Show Answer Correct Answer: B) Volume. 6. Enzymes are considered to be A) Lipids. B) Carbohydrate. C) Protein. D) Nucleic Acid. Show Answer Correct Answer: C) Protein. 7. Which group of organic compounds contains fatty acids? A) Carbohydrates. B) Lipids. C) Nucleic Acids. D) Proteins. Show Answer Correct Answer: B) Lipids. 8. When an Apoenzymes and co-factor like co-enzymes or metal ion combined together to become an active enzymes, they will become: A) Whole Enzymes. B) Complete Enzymes. C) Holoenzymes. D) Wholenymes. Show Answer Correct Answer: C) Holoenzymes. 9. Choose the polysaccharide that functions as energy storage. A) Pectin. B) Chitin. C) Starch. D) Peptidoglycan. Show Answer Correct Answer: C) Starch. 10. This type of bond results from unequal sharing of electrons A) Polar covalent bond. B) Nonpolar covalent bond. C) Hydrogen bond. D) Ionic bond. Show Answer Correct Answer: A) Polar covalent bond. 11. If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom? A) 10. B) 20. C) 30. D) None of above. Show Answer Correct Answer: B) 20. 12. Examples of amino acids with acid side chains. A) Glutamic acid. B) Aspartic acid. C) Both. D) None of above. Show Answer Correct Answer: C) Both. 13. How do enzymes speed up chemical reaction? A) Increasing activation energy. B) Decreasing activation energy. C) Increasing deactivation energy. D) Decreasing deactivation energy. Show Answer Correct Answer: B) Decreasing activation energy. 14. What suffix (word ending) is used in the names of most carbohydrates? A) -ase. B) -nic. C) -ose. D) -yme. Show Answer Correct Answer: C) -ose. 15. Which of these is most likely an enzyme? A) Sucrose. B) Galactose. C) Fructose. D) Amylase. Show Answer Correct Answer: D) Amylase. 16. Which biomolecule provides all living organisms with genetic information? A) Nucleic Acid. B) Protein. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: A) Nucleic Acid. 17. What type of bond transfers electrons? A) Ionic. B) Covalent. C) Hydrogen. D) Van der waals. Show Answer Correct Answer: A) Ionic. 18. Which biomolecule is mainly hydrocarbons and therefore very hydrophobic? A) Carbohydrate. B) Nucleic acid. C) Protein. D) Lipid. Show Answer Correct Answer: D) Lipid. 19. Stomach cells need to package and secrete large amounts of enzymes for use in digestion. Which of the following organelles would be found in a higher-than-normal frequency in stomach cells? A) Ribosomes. B) Lysosomes. C) Chloroplasts. D) Golgi apparati. Show Answer Correct Answer: D) Golgi apparati. 20. All atoms want how many electrons to be 'happy'? A) 2 or 8. B) 8 or 9. C) 5 or 6. D) 7 or 12. Show Answer Correct Answer: A) 2 or 8. ← 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