Chemiosmosis

Front 1

Chemiosmosis is the ________ of _______ across a ______ permeable membrane
Chemiosmosis occurs down a ______ potential gradient

Back 1

diffusions, ions, selectively
solute

Front 2

In respiration, chemiosmosis refers to the movement of _____ ions across a membrane.

Back 2

Hydrogen (H+)

Front 3

________ energy can be coupled to _________ work in cells.
Energy input (____ of food) --> _____ gradient across membrane (= ________ energy) --> Proton flow across gradient.
This proton flow across gradient can be used for:

Back 3

Potential, metabolic
Oxidation of food. Proton gradient = potential energy
-Synthesis of ATP in mitochondria and chloroplast
-Active transport
-Movement flagella
-Production of heat

Front 4

In mitochondria, chemiosmosis is called ________ ________.

Back 4

Oxidative phosphorylation

Front 5

Electron carriers are:
(a) Located on the __________ _________ of the mitochondria
(b) Contain ____ with variable _____ ________ such as __/__ which become ________ and then re-_____
(c) Situated close to _______ channels and ___ ______

Back 5

(a) inner membrane
(b) Ions, variable oxidation states such as Fe2+/Fe3+ which become reduced and then re-oxidised
(c) proton channels and ATP synthase

Front 6

OXIDATIVE PHOSPHORYLATION (1)
- For each molecule glucose, __ molecules ____ are formed.
- 2 in the ____ _______
- _ in the Krebs Cycles

Back 6

- 8 molecules NADH
- Link Reaction
- 6 in the Krebs Cycle

Front 7

OXIDATIVE PHOSPHORYLATION (2)
-__ NADH splits into _____ and _______. The electrons are passed through a chain of ______ _____

Back 7

- 8 NADH split into H+ and e-
- Electrons pass through electron carriers

Front 8

OXIDATIVE PHOSPHORYLATION (3)
- Electrons flow along the ETC. ____ is released and used by ________ to pump ______ from the __ of the mitochondria and into the ______ space.

Back 8

- Energy
- coenzymes to pump protons from the matrix into intermembrane space.

Front 9

OXIDATIVE PHOSPHORYLATION (4)
-The inner membrane is _____, they can however diffuse via _____ ________.
- ___ _____ are associated with

Back 9

- impermeable to protons
- proton channels
- Proton channels are associated with ATP synthase