BIOD 171 Module 2: Microbiology & Microscopy | Portage Learning Study Guide | Questions, Answers & Rationales

BIOD 171 x




Module 2: Metabolism | Portage Learning Study Guide
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| Questions, Answers & Detailed Rationales
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THIS STUDY RESOURCE INCLUDES x x x




• BIOD 171 Module 2 metabolism questions
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• Practice questions with answers
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• Detailed rationales and explanations
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• Metabolic pathways and energy concepts
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• Cellular energy and ATPx x x




• Enzymes and factors affecting enzyme activity
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• Catabolic and anabolic processes
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• Cellular respiration concepts
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• Glycolysis and related metabolic pathways
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• Aerobic and anaerobic metabolism
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• Energy transfer and biochemical reactions
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• Application-based practice questions x x




• Exam-focused review material x x

, BIOD 171 Module 2: Metabolism | Portage Learning
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x Study Guide | Questions, Answers & Detailed
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Rationales
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1. Metabolism is a controlled set of biochemical reactions that
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x occur in living organisms in order to maintain life.
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A) True
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B) False
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C) Only in prokaryotes
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D) Only in eukaryotes
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Correct Answer: A x x




Rationale: Metabolism includes all regulated chemical reactions
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that sustain life, including both catabolism and anabolism, across
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all living organisms.
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2. Enzymes slow down chemical reactions to conserve energy.
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A) True
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B) False
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C) Only in anaerobic conditions
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D) Only in the presence of cofactors
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Correct Answer: B x x




Rationale: Enzymes are biological catalysts that speed up (not slow
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, down) reactions by lowering activation energy. They do not
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conserve energy; they facilitate reaction rates.
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3. The term for metal ions that assist enzymes during the
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x catalysis reaction is: x x




A) Coenzymes
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B) Cofactors
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C) Prosthetic groups
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D) Substrates
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Correct Answer: B x x




Rationale: Cofactors include metal ions (e.g., Mg²⁺, Zn²⁺) that help
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enzymes function. Coenzymes are organic non-protein helpers,
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while prosthetic groups are tightly bound cofactors.
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4. What is catabolism?
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A) The synthesis of complex molecules from simple ones
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B) The process of breaking down larger molecules into useful
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energy sources
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C) The storage of glucose as glycogen
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D) The conversion of light energy into chemical energy
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Correct Answer: B x x




Rationale: Catabolism is the degradative phase of metabolism that
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