MCAT Biochemistry — Cloze: Enzymes & Regulators flashcards
8 of 70 cards free to study here · 13 topics · the whole deck is built into Willys
Fill-in-the-blank drills on metabolic control: the rate-limiting enzyme of each pathway, its allosteric activators and inhibitors, insulin, glucagon, epinephrine and cortisol effects, and where each pathway runs.
Drills deck · part of MCAT · written against: AAMC MCAT content outline (2015 exam, current through 2026). Updated 2026-10-10.
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The rate-limiting enzyme of glycolysis is …, activated most potently by fructose 2,6-bisphosphate.The rate-limiting enzyme of glycolysis is phosphofructokinase-1, activated most potently by fructose 2,6-bisphosphate.Glycolysis
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The rate-limiting enzyme of the citric acid cycle is ….The rate-limiting enzyme of the citric acid cycle is isocitrate dehydrogenase.Citric Acid Cycle
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Electron transport slows when … runs out, a coupling called respiratory control.Electron transport slows when ADP runs out, a coupling called respiratory control.Oxidative Phosphorylation
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The rate-limiting enzyme of glycogen synthesis is ….The rate-limiting enzyme of glycogen synthesis is glycogen synthase.Glycogen
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The rate-limiting enzyme of fatty acid synthesis is ….The rate-limiting enzyme of fatty acid synthesis is acetyl-CoA carboxylase.Fatty Acid Synthesis
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The rate-limiting enzyme of ketogenesis is mitochondrial ….The rate-limiting enzyme of ketogenesis is mitochondrial HMG-CoA synthase.Ketone Bodies
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Glucagon acts through a Gs-coupled receptor, raising … and activating protein kinase A.Glucagon acts through a Gs-coupled receptor, raising cAMP and activating protein kinase A.Fed vs Fasting Hormones
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The rate-limiting enzyme of cholesterol synthesis is …, the target of statins.The rate-limiting enzyme of cholesterol synthesis is HMG-CoA reductase, the target of statins.Other Rate-Limiting Steps
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About these cards
Review status: Second-reader reviewed, with corrections applied.
Checked against:
- OpenStax Biology 2e, consulted as a reference; no text copied.
- Facts cross-checked against Lehninger Principles of Biochemistry, 8th ed. (reference only; no text copied).
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