Biol101 Chapter 9: Oxidative Phosphorylation

Front 1

Oxidative Phosphorylation

Back 1

most of ATP synthesis (accounts for 90%)

Front 2

Oxidative Phosphorylation steps

Back 2

1. Electron transport chain
2. Chemiosmosis

Front 3

Electron transport chain

Back 3

chain in which electrons move from one protein complex to another, causing proteins to pump H^+ frm mitochondrial matrix to intermembrane space (generates NO ATP)

• carries alternating reduced/oxidized states of coenzymes

Front 4

Electron Transport Chain process

Back 4

1. NADH, FADH go back to oxidized states
2. electrons travel down the chain until they reach O[2]; causing proteins to pump out H^+ protons
3. protons pumped into inner membrane from matrix

Front 5

Electron transport chain location?

Back 5

In cristae of mitochondrion

Front 6

Final Electron Acceptor

Back 6

O[2] through which electrons pass through proteins (ATP synthase) to reach

Front 7

Chemiosmosis

Back 7

use of energy in H^+ gradient to drive cell work

Front 8

ATP synthase

Back 8

membrane protein that a proton travels through to turn ADP+P[i] into ATP, uses exergonic flow of H^+ to drive phosphorylation of ATP (endergonic reaction)

Front 9

Proton-Motive Force

Back 9

H^+ gradient (ADP is generated through proton motive force

Front 10

Coenzyme stages in Oxidative Phosphorylation

Back 10

I. NADH --> NAD^-
II. FADH[2]-->FAD
III. H^+
IV. 2H^+ + 1/2O[2] --> H[2]O