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AP A Unit 9 Lesson 3
AP A Unit 9 Lesson 3 Key Terms
| Question | Answer |
|---|---|
| ATP synthase | a complex of several membrane proteins that functions in chemiosmosis with adjacent electron transport chains, using the energy of a hydrogen ion (proton) concentration gradient to make ATP; ATP synthases are found in the inner mitochondrial membranes |
| chemiosmosis | an energy-coupling mechanism that uses energy stored in the form of a hydrogen ion gradient across a membrane to drive cellular work, such as the synthesis of ATP; under aerobic conditions, most ATP synthesis in cells occurs by chemiosmosis |
| cytochrome | an iron-containing protein that is a component of electron transport chains in the mitochondria and chloroplasts of eukaryotic cells and the plasma membranes of prokaryotic cells |