Aerobic Respiration & Oxidative Phosphorylation

Practice flashcards covering key concepts of aerobic respiration and oxidative phosphorylation, including the citric acid cycle, electron transport chain, and ATP synthesis.

What is the term for the cycle that begins with Acetyl-CoA and ends with regenerating oxaloacetate?

Citric Acid Cycle

What are the four metabolic pathways involved in cellular respiration?

Glycolysis, Pyruvate Oxidation, Citric Acid Cycle, and Electron Transport Chain.

What is produced during the decarboxylation of pyruvate?

Acetyl CoA and CO2.

What are the two mobile electron carriers in the Electron Transport Chain?

Coenzyme Q and Cytochrome C.

What catalyzes the synthesis of ATP in the mitochondria?

ATP synthase.

What is the purpose of the electron transport chain?

To extract energy from NADH and FADH2 by moving electrons through membrane complexes and creating a proton gradient.

How many ATP are generated from one NADH molecule?

2 to 3 ATP.

What mechanism controls metabolic pathways through the inhibition of enzymes?

Feedback inhibition.

What is chemiosmosis?

The movement of ions across a selectively permeable membrane, specifically the movement of H+ ions through ATP synthase.

What do NADH and FADH2 get converted to during oxidative phosphorylation?

NAD+ and FAD.

What is the main form of energy storage produced during the Citric Acid Cycle?

High-energy electrons stored in reduced coenzymes NADH and FADH2.