This quiz works best with JavaScript enabled. Home > Agriculture > Biochemistry > General > Biochemistry – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 22 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In organisms, macromolecules are made up of subunits. Which of these pairs correctly describeshow a macromolecule is constructed? A) Protein is made up of amino acids. B) DNA is made up of nucleic acids. C) Amino acids are made up of protein. D) Nucleic acids are made up of DNA. Show Answer Correct Answer: A) Protein is made up of amino acids. 2. Which of the following statements about enzymes is NOT true? A) Enzymes are reusable. B) Enzymes work best at specific pH and temperatures. C) Enzymes are lipids. D) Enzymes are proteins. Show Answer Correct Answer: C) Enzymes are lipids. 3. Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand:GTAGTCA A) ACGACTG. B) CAUCAGU. C) CATCAGT. D) None of above. Show Answer Correct Answer: B) CAUCAGU. 4. Substances that contain carbon A) Bioorganic substances. B) Chemical substances. C) Bioinorganic substances. D) Biochemical substances. Show Answer Correct Answer: A) Bioorganic substances. 5. Any substance that is acted upon by an enzyme is called a(n)? A) Substrate. B) Vitamin. C) Coenzyme. D) Polypeptide. Show Answer Correct Answer: A) Substrate. 6. The monomer or building blocks of proteins are ..... A) Amino acids. B) Fatty acids. C) Monosaccharides. D) Nucleic acids. Show Answer Correct Answer: A) Amino acids. 7. Enzymes are ..... A) Nucleic acids. B) Carbohydrates. C) Lipids. D) Proteins. Show Answer Correct Answer: D) Proteins. 8. Which of the following is a food source for a carbohydrate? A) Apple. B) Bread. C) Rice. D) All of the above. Show Answer Correct Answer: D) All of the above. 9. This type of bond results from an electronegative atom bonded to a hydrogen attracted to another electronegative atom. A) Nonpolar covalent bond. B) Hydrogen bond. C) Polar covalent bond. D) Ionic bond. Show Answer Correct Answer: B) Hydrogen bond. 10. What makes up the SIDES of a DNA ladder? A) RNA. B) Nitrogen bases. C) Genes & chromosomes. D) Sugars & phosphates. Show Answer Correct Answer: D) Sugars & phosphates. 11. A molecule that enzymes work on is? A) An active site. B) An ensyme. C) A substrate. D) A product. Show Answer Correct Answer: C) A substrate. 12. Rochelle's salt is used in which of the following solutions? A) Benedict's. B) Seliwanoff's. C) Molisch's. D) Fehling's. Show Answer Correct Answer: D) Fehling's. 13. Which of these biological functions is made more effective by the hydrogen-bonding properties of water? A) Lubrication of joints as a means of preventing injury. B) Sweating as a means of regulating body temperature. C) Transmitting signals and information as a means of body movement. D) Breathing as a means of taking in oxygen and releasing carbon dioxide. Show Answer Correct Answer: B) Sweating as a means of regulating body temperature. 14. Which of the big 4 is used for long-term energy storage, insulation, and protection? A) Carbohydrates. B) Nucleic acid. C) Lipids. D) Proteins. Show Answer Correct Answer: C) Lipids. 15. Which two body systems interact to send oxygen throughout the body? A) Nervous and Digestive. B) Excretory and Endocrine. C) Respiratory and Circulatory. D) Circulatory and Skeletal. Show Answer Correct Answer: C) Respiratory and Circulatory. 16. Water is classified as an inorganic compound because it A) Contains hydrogen. B) Does not contain carbon. C) Contains oxygen. D) Does not contain nitrogen. Show Answer Correct Answer: B) Does not contain carbon. 17. The enzyme and co-enzyme can beseparated easily by: A) Chemotheraphy. B) Blood Transfusion. C) Surgery. D) Dialysis. Show Answer Correct Answer: D) Dialysis. 18. What is another name for enzymes? A) Inorganic catalysts. B) Chemical catalysts. C) Microorganisms. D) Biological catalysts. Show Answer Correct Answer: D) Biological catalysts. 19. Polysaccharides are polymers of ..... A) Nucleic Acids. B) Proteins. C) Carbohydrates. D) Lipds. Show Answer Correct Answer: C) Carbohydrates. 20. This type of bond results from the gain or loss of electrons. A) Nonpolar covalent bond. B) Hydrogen bond. C) Ionic bond. D) Polar covalent bond. Show Answer Correct Answer: C) Ionic bond. 21. These lipids have all their carbon atoms fully filled with hydrogen atoms; found in animal fats and dairy products. A) Unsaturated fats. B) Steroids. C) Waxes. D) Saturated fats. Show Answer Correct Answer: D) Saturated fats. 22. Which is the wrong polymer/monomer pair? A) Carbohydrates:monosaccharides. B) Proteins:amino acids. C) Lipids:monosaccharides. D) Nucleic acids:nucleotides. Show Answer Correct Answer: C) Lipids:monosaccharides. 23. What molecule is used for LONG term energy storage? A) Lipids. B) Nucleic acid. C) Carbohydrates. D) Protiens. Show Answer Correct Answer: A) Lipids. 24. How many atoms/elements are in CaCO3? A) 3. B) 6. C) 5. D) 4. Show Answer Correct Answer: C) 5. 25. Viruses are made up of either DNA or RNA surrounded by a coating of protein. When the two main substances that make up a virus are broken into smaller fragments, the fragments are ..... A) Fatty acids and amino acids. B) Amino acids and simple sugars. C) Amino acids and nucleotides. D) Fatty acids and glycerol. Show Answer Correct Answer: C) Amino acids and nucleotides. 26. Which one is a non reducing sugar? A) Glucose. B) Galactose. C) Maltose. D) Sucrose. Show Answer Correct Answer: D) Sucrose. 27. Which type of RNA takes the instructions from the nucleus to the cytoplasm? A) MRNA. B) RRNA. C) TRNA. D) RNA polymerase. Show Answer Correct Answer: A) MRNA. 28. Why do oil and water not mix? A) Both water and oil are non polar. B) Both water and oil are polar. C) Water is polar and oil is non polar. D) Water is non polar and oil is polar. Show Answer Correct Answer: C) Water is polar and oil is non polar. 29. Which of the following is not a lipid? A) Enzymes. B) Phospholipids. C) Triglyceride. D) Steroids. Show Answer Correct Answer: A) Enzymes. 30. It is known as the study of enzymes? A) Enzymotology. B) Enzymology. C) Enzymtology. D) Enzymatics. Show Answer Correct Answer: B) Enzymology. ← PreviousNext →Related QuizzesBiochemistry QuizzesAgriculture QuizzesBiochemistry Quiz 1Biochemistry Quiz 2Biochemistry Quiz 3Biochemistry Quiz 4Biochemistry Quiz 5Biochemistry Quiz 6Biochemistry Quiz 7Biochemistry Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books