Cellular Respiration and ATP Synthesis

These flashcards cover key concepts related to cellular respiration, ATP synthesis, and the regulation of enzymes involved in these processes.

Final Electron Acceptor

In aerobic oxidative phosphorylation, the final electron acceptor is oxygen.

Exergonic Redox Reactions

In mitochondria, these reactions provide the energy that establishes the proton gradient.

Oxidizing Agent

In the reaction Pyruvate + NADH → Lactate + NAD, the oxidizing agent is NADH.

Electron Transport Chain

Electrons flowing through the mitochondria's electron transport chain increase the pH of the matrix.

Citric Acid Cycle

Most carbon dioxide from catabolism is released during the citric acid cycle.

Phosphofructokinase

An enzyme that is allosterically regulated by ATP, affecting the glycolytic pathway.

ATP Synthase

A molecular motor involved in ATP production; functions as both a proton pump and an enzyme.

Dinitrophenol (DNP)

A compound that uncouples chemiosmosis by making the mitochondrial membrane leaky to protons.

Oxidative Phosphorylation

The production of ATP via energy from redox reactions in a spatially organized electron transport chain followed by chemiosmosis.

Coenzyme Q (CoQ)

A substance that plays a role in the electron transport chain, though it is not considered a fuel in cellular respiration.