explain krebs cycle in biology?
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The Krebs cycle is a series of steps (chemical reactions) that occurs in a mitochondrion.
The Krebs cycle begins with the entry of a 2-carbon molecule that gets delivered by acetyl CoA. The 2-carbon molecule bonds with a 4-carbon molecule forming citrate, a 6-carbon molecule. Citrate is converted (by a series of reactions) back to the 4-carbon molecule (thus it’s a cycle).
CO2 is removed in two of the reactions (decarboxylations).
ATP is produced directly in one of the reactions (substrate-level phosphorylation)
Hydrogen is removed in four of the reactions (oxidations).
For each glucose molecule (at the start of glycolysis) there will be two turns of the Krebs cycle.
The two turns of the cycle produce 4 CO2, 6 NADH + H+, 2 FADH2 and 2 ATP.
Plz refer the given link for details
http://www.youtube.com/watch?v=aCypoN3X7KQ
HOPE SO THIS HELPS U
______________________________________________________________________________
The Krebs cycle begins with the entry of a 2-carbon molecule that gets delivered by acetyl CoA. The 2-carbon molecule bonds with a 4-carbon molecule forming citrate, a 6-carbon molecule. Citrate is converted (by a series of reactions) back to the 4-carbon molecule (thus it’s a cycle).
CO2 is removed in two of the reactions (decarboxylations).
ATP is produced directly in one of the reactions (substrate-level phosphorylation)
Hydrogen is removed in four of the reactions (oxidations).
For each glucose molecule (at the start of glycolysis) there will be two turns of the Krebs cycle.
The two turns of the cycle produce 4 CO2, 6 NADH + H+, 2 FADH2 and 2 ATP.
Plz refer the given link for details
http://www.youtube.com/watch?v=aCypoN3X7KQ
HOPE SO THIS HELPS U
______________________________________________________________________________
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