OpenStax Microbiology Test Bank- Chapter 7: Microbial Biochemistry

OpenStax Microbiology Test Bank- Chapter 7: Microbial Biochemistry BIOLOGY 206 * = Correct answer Multiple Choice 1. Which of the following is the best definition of a macronutrient? A. a trace element B. a vitamin C. an organic molecule necessary for life D. the most abundant elements found in living cells* Difficulty: Easy ASM Standard: N/A 2. Amino groups are an important component of which of the following macromolecules? A. carbohydrates B. lipids C. nucleic acids D. proteins* Difficulty: Easy ASM Standard: N/A 3. The building blocks of polymers are called which of the following? A. inorganic molecules B. macromolecules C. monomers* D. nucleic acids Difficulty: Easy ASM Standard: N/A 4. Which of the following is not one of the four major types of carbon-based macromolecules found in cells? A. carbohydrates B. lipids C. macronutrients* D. nucleic acids Difficulty: Easy ASM Standard: N/A 5. Which of the following is the typical, stable shape of glucose in cells? A. a branched chain B. a double ring C. a ring* D. a tetrahedron Difficulty: Easy ASM Standard: N/A 6. In which form do plants generally store sugar molecules? A. cellulose B. chitin C. glycogen D. starch* Difficulty: Easy ASM Standard: N/A 7. Which term specifically describes fatty acids that do not have any double bonds, triple bonds, or rings? A. esterified B. polyunsaturated C. saturated* D. unsaturated Difficulty: Easy ASM Standard: N/A 8. Which of the following best describes the difference between steroids and sterols? A. Steroids are the most common type of sterol. B. Steroids contain rings, whereas sterols do not. C. Sterols are a type of steroid with an OH group.* D. Sterols are present in prokaryotes and steroids are not. Difficulty: Moderate ASM Standard: N/A 9. Which best describes oligopeptides? A. a molecule consisting of two amino acids B. long chains of amino acids C. polymers of about 20 amino acids*