unit 3 reading 18

Question 1

ATP Synthase

Answer 1

large membrane-bound protein comples that uses the potential energy stored in a proton gradient to couple proton transport and ATP synthesis

Question 2

Chemiosmosis

Answer 2

energetic coupling mechanism whereby energy stored in an electrochemical proton gradient is used to drive an energy-requiring process such as ATP production

Question 3

Electron transport chain (ETC)

Answer 3

any set of membrane-bound protein complexes and mobile electron carrier involved in a coordinated series of redox rxns (energy released from redox is used to AT protons from one side of membrane to other)

Question 4

Mitochondrion

Answer 4

eukaryotic organelle that is surrounded by two membranes and is the site of aerobic respiration and ATP synthesis

Question 5

mitochondrial matrix

Answer 5

central compartment of mitochondrion which is lined by the inner membrane (contains mitochondrial DNA, ribosomes, and enzymes for pyruvate processing and the citric acid cycle)

Question 6

proton motive force

Answer 6

combined effect of a proton gradient and an electric potential gradient across a membrane (can drive protons across the membrane)
used by: prokaryotes, mitochondria, and chloroplasts to power ATP synthesis or other energy demanding processes via chemiosmosis