Krebs Cycle - PowerPoint PPT Presentation

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Krebs Cycle

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Krebs Cycle Asya Mamaev Ib1 Biology Krebs Cycle Asya Mamaev Ib1 Biology Anaerobic and aerobic respiration Aerobic- occurs in the mitochondrion Glycolosis can occur ... – PowerPoint PPT presentation

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Title: Krebs Cycle


1
Krebs Cycle
  • Asya Mamaev
  • Ib1 Biology

2
Anaerobic and aerobic respiration
Aerobic- with oxygen
Aerobic- occurs in the mitochondrion
Anaerobic- without oxygen
  • Glycolosis can occur without oxygen
  • The basis of anaerobic cell respiration

3
The link reaction
Decarboxylation- Removal of carbon dioxide
NAD
NADH H
Pyruvate from glycolysis is absorbed by the
mitochondrion
Acetyl CoA
pyruvate
CoA
CO2
Enzymes in the matrix of the mitochondrion remove
hydrogen and carbon dioxide from the pyruvate
  • The hydrogen is accepted by NAD.
  • This is oxidation

4
The Krebs Cycle
CoA
  • Acetyl group is transferred from acetyl CoA to a
    four-carbon compound to form a six-carbon compound

oxoaloacetate
citrate
NAD
FAD
ADP
Krebs Cycle
5
Vocabulary
pages
  • Link reaction
  • Krebs cycle
  • Oxidative decarboxylation
  • Decarboxylations
  • Oxidations
  • Substrate-level phosphorylation

Study guide page 74
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