Electron Transport Chain

These flashcards cover key concepts related to the electron transport chain, including its function, processes involved, and terminology.

Electron Transport Chain (ETC)

A series of chemical reactions that transfer electrons from electron donors to electron acceptors via redox reactions.

Redox reactions

Chemical reactions involving the transfer of electrons, where oxidation and reduction occur simultaneously.

Oxidation of NADH

The process in which NADH is converted to NAD* during the electron transport chain, leading to ATP production.

Electrochemical proton gradient

A gradient created by the transfer of protons (H+ ions) across the inner mitochondrial membrane.

ATP (Adenosine Triphosphate)

The main energy-storing molecule produced during the oxidation of glucose, primarily in the electron transport chain.

Mitochondria

The organelle in cells where the electron transport chain and Krebs cycle occur; the powerhouse of the cell.

NADH

Nicotinamide adenine dinucleotide (reduced form), produced during glycolysis and the Krebs cycle, crucial for ATP synthesis in the ETC.

Krebs cycle

A series of enzymatic reactions occurring in the mitochondria that produces NADH and FADH2 used in the electron transport chain.