This quiz works best with JavaScript enabled. Home > Agriculture > Biochemistry > General > Biochemistry – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 6 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why are enzymes essential to all multicellular organisms? A) They contain genetic information. B) They provide insulation. C) They produce living tissue. D) They catalyze metabolic reactions. Show Answer Correct Answer: D) They catalyze metabolic reactions. 2. The enzyme that produces G3P & DHAP is: A) PhosphoFructoKinase. B) Aldolase. C) Hexokinase. D) Enolase. Show Answer Correct Answer: B) Aldolase. 3. What makes Nitrogen Fixers unique? A) Genetic Components. B) Biochemical Components. C) All of the above. D) None of the above. Show Answer Correct Answer: C) All of the above. 4. Plants use polysaccharides for such as starch for A) Structure. B) Energy storage. C) Protection. D) None of above. Show Answer Correct Answer: B) Energy storage. 5. Found the nucleus of human cells and controls the transmission of genetic information. A) Proteins. B) Carbohydrates. C) Nucleic acids. D) Lipids. Show Answer Correct Answer: C) Nucleic acids. 6. What is the main element of organic compound? A) Oxygen. B) Hydrogen. C) Carbon. D) Nitrogen. Show Answer Correct Answer: C) Carbon. 7. What is a solution that has an excess of hydroxide (OH-) ions? A) PH=6.5. B) Acid. C) Neutral. D) Base. Show Answer Correct Answer: D) Base. 8. The particle involved in chemical reactions is the A) Proton. B) Neutron. C) Electron. D) None of above. Show Answer Correct Answer: C) Electron. 9. Proteins are made up of long chains of ..... A) Lipids. B) Amino Acids. C) Saccharides. D) Polysaccharides. Show Answer Correct Answer: B) Amino Acids. 10. Which biochemistry area that describe the language for communication inside and between cells? A) Conformational. B) Metabolism. C) Informational. D) None of above. Show Answer Correct Answer: C) Informational. 11. Inorganic Compounds do NOT contain Hydrogen and ..... together. A) Potassium. B) Nitrogen. C) Carbon. D) Oxygen. Show Answer Correct Answer: C) Carbon. 12. What is the mass of an atom if it has 11 protons, 12 neutrons, and 11 electrons? A) 11. B) 22. C) 23. D) 34. Show Answer Correct Answer: C) 23. 13. Which nutrient provides the body with the ready source of energy? A) Protein. B) Carbohydrates. C) Fiber. D) Fats. Show Answer Correct Answer: B) Carbohydrates. 14. All organic compounds contain the element A) Carbon. B) Phosphorus. C) Sulfur. D) Nitrogen. Show Answer Correct Answer: A) Carbon. 15. Butter and oil are examples of food composed of A) Carbohydrates. B) Nucleic acids. C) Proteins. D) Lipids. Show Answer Correct Answer: D) Lipids. 16. Which is an example of a nucleic acid? A) Red meat. B) Oil. C) Sugar. D) DNA. Show Answer Correct Answer: D) DNA. 17. Which macromolecule contains phosphorus? (Always true, not Sometimes true) A) Nucleic Acids. B) Lipids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: A) Nucleic Acids. 18. Which is the correct formula for a polysaccharide? A) C12H22O11. B) C12H24O12. C) C6H12O6. D) (C6H10O5)n. Show Answer Correct Answer: D) (C6H10O5)n. 19. What kind of molecule is water? A) Ionic. B) Polar Covalent. C) Nonpolar Covalent. D) Metallic. Show Answer Correct Answer: B) Polar Covalent. 20. Which of the big 4 is your body's main source of quick energy? A) Lipids. B) Nucleic acids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: C) Carbohydrates. 21. The building blocks (or monomers) of Complex Carbohydrates are ..... A) Monosaccharides. B) Amino Acids. C) Nucleic Acids. D) Glycerols. Show Answer Correct Answer: A) Monosaccharides. 22. Examples of nucleic acids? A) DNA and RNA. B) Carbohydrates. C) Potatoes. D) Meats. Show Answer Correct Answer: A) DNA and RNA. 23. What are the monomer units of a protein? A) Sugar. B) Nucleotide. C) Amino Acid. D) Fatty Acid. Show Answer Correct Answer: C) Amino Acid. 24. A type of bond, unequal sharing of electrons; otherwise, assymetrical. A) Ionic. B) Covalent. C) Single covalent. D) Polar covalent. Show Answer Correct Answer: D) Polar covalent. 25. Which of the following options correctly pairs a polymer and its monomer? A) DNA, nucleotides. B) Collagen, nucleic acids. C) Cellulose, amino acids. D) RNA, ribose. Show Answer Correct Answer: A) DNA, nucleotides. 26. What level of protein structure is the folding into a complex shape? A) Primary. B) Tertiary. C) Quaternary. D) Secondary. Show Answer Correct Answer: B) Tertiary. 27. Organic compounds are all bonded ..... A) Covalently. B) Ionically. C) Well. D) With Hydrogen bonds. Show Answer Correct Answer: A) Covalently. 28. The distortion (change in shape) of enzyme molecules which occurs at high temperatures is known as A) Specificity. B) Synthesis. C) Replication. D) Denaturation. Show Answer Correct Answer: D) Denaturation. 29. The difference between one amino acid and another is found in the A) Carboxyl group. B) Amino group. C) Peptide bonds. D) R-group. Show Answer Correct Answer: D) R-group. 30. What are the four molecules of life? A) Water, earth, wind, fire. B) Carbohydrates, lipids, proteins, nucleic acids. C) Carbon, oxygen, hydrogen, helium. D) Monomers, polymers, disaccharides, glucose. Show Answer Correct Answer: B) Carbohydrates, lipids, proteins, nucleic acids. ← PreviousNext →Related QuizzesBiochemistry QuizzesAgriculture QuizzesBiochemistry Quiz 1Biochemistry Quiz 2Biochemistry Quiz 3Biochemistry Quiz 4Biochemistry Quiz 5Biochemistry Quiz 7Biochemistry Quiz 8Biochemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books