Fill in the blanks in this summary map to help you review the key concepts of cellular respiration.

Cellular respiration is a metabolic process that converts glucose and other organic fuels into ATP, the energy currency of the cell. It occurs in three main stages: glycolysis, the citric acid cycle, and oxidative phosphorylation. Each stage plays a crucial role in breaking down glucose and harnessing energy, ultimately producing ATP for cellular work.

Chemiosmosis is the process by which ATP is produced in the mitochondria during oxidative phosphorylation. It involves the movement of protons (H+) across a membrane, creating a proton gradient. This gradient drives the synthesis of ATP as protons flow back through ATP synthase, an enzyme that catalyzes the conversion of ADP and inorganic phosphate into ATP.

The electron transport chain (ETC) is a series of protein complexes located in the inner mitochondrial membrane that facilitate the transfer of electrons derived from NADH and FADH2. As electrons move through the chain, they release energy used to pump protons into the intermembrane space, contributing to the proton gradient essential for ATP production via chemiosmosis.