◉ BioQuestAP BIOLOGY
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EXPEDITION 4 / 8 · COLLEGE BOARD UNIT 3

Cellular Energetics

Enzymes, photosynthesis, and respiration

Your pace. Your study mode.75 flashcards · 20 MCQs

EXPLORE & EXPERIMENT

Why do enzyme reactions reach a ceiling?

Compare substrate concentration with reaction rate. Change enzyme capacity and substrate affinity.

Initial reaction rate (arbitrary units)

Why do enzyme reactions reach a ceiling?0255075100012.52537.550Substrate concentration (arbitrary units)At [S] = 10: 53.3 rate units
Model & assumptions

v = Vmax[S] / (Km + [S])

Michaelis–Menten extension model for an idealized enzyme under steady-state conditions. Temperature and pH are fixed; cooperativity and inhibitors are omitted.

Original BioQuest teaching models. Explore the OpenStax Biology reference. Gene regulation · Oxidative phosphorylation