Pages in this set

Page 1

Preview of page 1

Glycolysis is the initial stage of both aerobic and anaerobic respiration. It occurs in the cytoplasm
of all living cells and is the process by which a hexose sugar, usually glucose, is split into two
molecules of the 3-carbon molecule pyruvate .

1. Activation of glucose by phosphorylation.…

Page 2

Preview of page 2
The 2C molecule that is thereby formed combines with coenzyme A to produce acetyl CoA.

A carbon dioxide molecule is formed from each pyruvate.

pyruvate + NAD + CoA acetyl CoA + NADH + CO2

Reaction happens twice per molecule of glucose.

Krebs cycle
The Krebs cycle involves a series…

Page 3

Preview of page 3
Once pumped across the membrane, the protons cannot pass back through, therefore a high

concentration of H+ is present in the intermembrane space.
The protons therefore diffuse through a carrier protein which contains the enzyme ATP
Energy from the diffusing protons also allows ADP to be phosphorylated to form…


No comments have yet been made

Similar Biology resources:

See all Biology resources »