Assess students' understanding of glycolysis, the Krebs (citric acid) cycle, and oxidative phosphorylation by comparing their cellular locations, inputs and outputs, net ATP yields, roles of NADH/FADH2, types of ATP generation (substrate-level vs oxidative phosphorylation), oxygen dependence, and key regulatory steps; include short-answer, pathway-comparison, and a data-interpretation item requiring ATP-yield calculation and explanation of pathway responses to inhibitors or hypoxia.