Krebs cycle

Krebs cycle

Involves series of oxidation-reduction reactions
Occurs in matrix of mitochondria
2C acetylCoA from link reaction combines with 4C to produce 6C molecule
1. 6C molecule loses CO2 and Hs to give a 4C molecule and single ATP produced as a result of Substrate-level phosphorylation
  1. 4C molecule combines with new molecule of acetylCoA to begin new cycle again
For each molecule of pyruvate(of 2 produced from glucose) together with link reaction produces
1. Reduced coenzymes: NAD and FAD
  Nota:
  - Has potential to produce ATP
2. 1 ATP
3. 3 CO2
Coenzymes-molecules that some enzyme require in order to function
1. They carry H atoms from one molecule to another
2. NAD in respiration works with dehydrogenase enzyme- catalyse the removal of H ions from substrates and transfer them to other molecules;H carriers
Breaks down macromolecules into smaller ones;pyruvate=>CO2
Produces H atoms that are carried by NAD to the electron transport chain for oxidative phosphorylation
1. Leads to production of ATP
Regenerates the 4C molecule that combines with acetylCoA(otherwise it would accumulate)
A source of intermediate compounds used by cells in the manufacture of other important substances(fatty acids,amino acids, chlorophyll)

Resumen del Recurso

	Creado por ewelinaskula hace más de 11 años