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Ffion Griffiths
BY4



ATP AND RESPIRATION

OVERVIEW






















GLYCOLYSIS
Occurs in the cytoplasm
1 NAD removes 2 Hydrogens from the substrate forming Reduced NAD
2 molecules of Reduced NAD produced
Produces 4 ATP however due to the initial energy investment of 2 ATP a NET gain of
2 ATP
1 molecule…

Page 2

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Ffion Griffiths
BY4



INITIAL ENERGY INVESTMENT
















LINK
Pyruvate + NAD + CoA Acetyl coA + Reduced
NAD


Occurs in the
Cytoplasm/Matrix of the
mitochondria
Net yield of 2
Reduced NAD per glucose
2 molecules of
CO produced






KREBS CYCLE
Occurs in the matrix of the mitochondria

Substrate-level phosphorylation forms 2ATP…

Page 3

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Ffion Griffiths
BY4




DECARBOXYLLATION
SUBSTRATE LEVEL
PHOSPHORYLATION
















Page 4

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Ffion Griffiths
BY4




ELECTRON TRANSFER CHAIN
Occurs in the inner membrane of the mitochondria
Produces ATP from Reduced NAD and Reduced FAD
Each Reduced FAD generates 2 molecules of ATP
Each Reduced NAD generates 3 molecules of ATP








SUMMARY
1 molecule of glucose yields 38 molecules of ATP (4 are…

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Ffion Griffiths
BY4




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