OpenStax Microbiology Test Bank- Chapter 8: Microbial Metabolism

OpenStax Microbiology Test Bank- Chapter 8: Microbial Metabolism BIOLOGY 206 * = Correct answer Multiple Choice 1. Which of the following refers to the term metabolism? A. all the reactions in a cell or organism* B. all the reactions in a cell that break down molecules only C. all the reactions in a cell that build new molecules only D. all the reactions in a cell that decompose molecules only Difficulty: Easy ASM Standard: N/A 2. Which of the following best describes an endergonic reaction? A. absorbs energy from the environment* B. is coupled with another reaction C. is involved in biosynthesis D. releases energy into the environment Difficulty: Easy ASM Standard: N/A 3. Chemotrophs obtain their energy from which of the following? A. inorganic chemical reactions only B. light energy C. organic chemical reactions only D. organic and inorganic chemical reactions* Difficulty: Easy ASM Standard: 11 4. Which of the following describes a molecule that had an electron removed? A. anabolized B. electronated C. oxidized* D. reduced Difficulty: Easy ASM Standard: N/A 5. Which of the following best describes the subcomponents of pyrophosphate? A. two inorganic phosphate molecules* B. two organic phosphate molecules C. three inorganic phosphate molecules D. three organic phosphate molecules Difficulty: Easy ASM Standard: N/A 6. Which molecule is often called the cell’s energy currency? A. adenosine triphosphate* B. flavin adenine dinucleotide C. nicotinamide adenine dinucleotide D. nicotinamide adenine dinucleotide phosphate Difficulty: Easy ASM Standard: N/A 7. Which site on an enzyme is where substrates bind? A. the activation site B. the active site* C. the catalyst site D. the lock and key site Difficulty: Easy ASM Standard: N/A 8. Which of the following are inorganic molecules that bind to enzymes? A. apoenzymes B. coenzymes C. cofactors* D. holoenzymes Difficulty: Easy ASM Standard: N/A 9. Which of the following best describes catabolic pathways? A. They always absorb energy. B. They break down large molecules into smaller components.* C. They build up large molecules from smaller components. D. They must be coupled with the breakdown of ATP. Difficulty: Moderate ASM Standard: N/A 10. Which group comprises all lithotrophs? A. algae B. autotrophs C. microbes* D. plants Difficulty: Moderate