This quiz works best with JavaScript enabled. Home > Biochemistry > Biochemistry – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biochemistry Quiz 41 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Substances that do not contain carbon A) Bioinorganic substances. B) Bioorganic substances. C) Biochemical substances. D) Chemical substances. Show Answer Correct Answer: A) Bioinorganic substances. 2. The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements? A) Enzymes function best at a specific temperature. B) The body needs to be warm to prevent hypothermia. C) The body is kept relatively warm to prevent too much enzyme action. D) There is no connection between the two statements. Show Answer Correct Answer: A) Enzymes function best at a specific temperature. 3. Which macromolecule is used for long term energy storage? A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Lipids. 4. Joining two adjacent amino acids is called A) A peptide bond. B) A dehydration reaction. C) A covalent bond. D) All choices are correct. Show Answer Correct Answer: B) A dehydration reaction. 5. Adenine bonds with ..... A) Guanine. B) Thymine. C) Cytosine. D) Adenine. Show Answer Correct Answer: B) Thymine. 6. ..... may be fats, oils, or waxes. A) Lipids. B) Carbohydrates. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Lipids. 7. What happens during translation? A) Messenger RNA is made from a DNA code. B) The cell uses a messenger RNA code to make proteins. C) Transfer RNA is made from a messenger RNA code. D) Copies of DNA molecules are made. Show Answer Correct Answer: B) The cell uses a messenger RNA code to make proteins. 8. Which of the following is NOT a type of macromolecule? A) Water. B) Nucleic Acid. C) Protein. D) Lipid. Show Answer Correct Answer: A) Water. 9. Building reactions needed to maintain life is considered as: A) Catabolic. B) Lolabolic. C) Metabolic. D) Anabolic. Show Answer Correct Answer: D) Anabolic. 10. ..... increase the presence of H+ ions and are below 7 on the pH scale. A) Acids. B) Bases. C) Electrolytes. D) Salts. Show Answer Correct Answer: A) Acids. 11. Why is carbon able to be the building block of organic compounds? A) Able to make 4 bonds. B) Light in atomic weight. C) Large. D) Non-reactive element. Show Answer Correct Answer: A) Able to make 4 bonds. 12. Which of the following are termed as reducing sugars? A) Aldohexoses. B) Trioses. C) Ketohexoses. D) None of above. Show Answer Correct Answer: A) Aldohexoses. 13. A disaccharide is a carbohydrate that contains ..... A) 3 or more sugars. B) One sugar. C) Two sugars. D) Fatty acid chains. Show Answer Correct Answer: C) Two sugars. 14. Which macromolecule stores energy, insulates us, and makes up the cell membrane? A) Lipids. B) Proteins. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: A) Lipids. 15. In which type of bond are electrons transferred? A) Non-polar Covalent Bonds. B) Polar Covalent Bonds. C) Ionic Bonds. D) Hydrogen Bonds. Show Answer Correct Answer: C) Ionic Bonds. 16. What is the chemical formula for water? A) H3O. B) H2O2. C) H2O3. D) H2O. Show Answer Correct Answer: D) H2O. 17. What is the essence of the denaturation? A) Desintegration of low-energy bonds. B) Desintegration of peptide bonds. C) Desintegration of amino acids. D) Desintegration of proteins. Show Answer Correct Answer: A) Desintegration of low-energy bonds. 18. Bananas are considered as ..... A) Acidic. B) Basic. C) Neutral. D) None of the above. Show Answer Correct Answer: A) Acidic. 19. Breads, rice, & pasta are examples of foods that contain this macromoleucle A) Carbohydrates. B) Lipids. C) Proteins. D) Nucleic Acids. Show Answer Correct Answer: A) Carbohydrates. 20. Water is often called the "universal solvent" because many substances can be dissolved in water. What property of water allows it to be such a versatile solvent? A) Purity. B) Polarity. C) High heat capacity. D) Expansion upon freezing. Show Answer Correct Answer: B) Polarity. ← 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