oxidative phosphorylation

Question 1

Oxidative phosphorylation

Answer 1

the oxygen-dependent process in the electron transport chain where ADP is phosphorylated

Question 2

electron transport chain

Answer 2

a series of electron-carrying compounds along which electrons are transferred in a series of oxidation/reduction reactions, driving the production of ATP

Question 3

chemiosmosis

Answer 3

the process that links the electrons that are passed along the electron transport chain to the production of ATO, by the movement of hydrogen ions through the membrane along electrochemical concentration and pH gradients

Question 4

cytochromes

Answer 4

members of the electron transport chain; they are protein pigments with an iron group (similar to haemoglobin) which are reduced by electrons from reduced FAD, which is reoxidised, with the production of a molecule of ATP

Question 5

cytochrome oxidase

Answer 5

an enzyme in the electron transport chain which receives the electrons from the cytochromes and is reduced as the cytochromes are oxidised, with the production of a molecule of ATP

Question 6

chemiosmotic theory

Answer 6

the model developed by Peter Mitchell to explain the production of ATP in mitochondria, chloroplasts and elsewhere in living cells

Question 7

respiratory substrate

Answer 7

the substance used as fuel and oxidised during cellular respiration

Question 8

respiratory quotient (RQ)

Answer 8

the relationship between the amount of carbon dioxide produced and the amount of oxygen used when different respiratory substrates are used in cellular respiration