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11 terms

Zoology Chapter 6

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Aerobic cellular respiration
a cell uses oxygen and the potential energy in the bonds of glucose to generate ATP
Glyolysis
breaking sugar; glucose splits into two 3-carbon molecules of pyruvate
Pyruvate
the product of glycolysis
Krebs cycle
releases all of the carbon in pyruvate as CO2
Electron transport chain
transfers energy-rich electrons from NADH to FADH2 through a series of cytochromes and other membrane proteins
ATP synthase
enzyme that forms a channel in the membrane, releasing the protons and using their potential energy to phosphorylate ADP
Intermembrane compartment
the area between the two membranes of the mitochondrion
Matrix
the area enclosed by the highly folded inner mitochondrial membrane
Substrate-level phosphorylation
a high-energy donor molecule (PGAL) physically transfers a phosphate group to ADP
Acetyl CoA
the compound that enters the Krebs cycle
Chemiosmotic phosphorylation
protons move down their gradient through ATP synthase channels back into the matrix and ADP is phosphorylated to ATP