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Respiration releases
energy from organic
molecules.…read more

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A in the link reaction to produce acetylcoenzyme A
Pyruvate is decarboxylated
NAD is reduced (it collects hydrogen
from pyruvate) changing it into acetate
Acetate combines with (CoA) to form
acetyl CoA
No ATP produced
· in a series of oxidation-reduction reactions the Krebs cycle generates reduced
coenzymes and ATP by substrate-level phosphorylation, and carbon dioxide is lost
· acetylcoenzyme A is effectively a two carbon molecule that combines with a four
carbon molecule to produce a six carbon molecule which enters the Krebs cycle…read more

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ATP by oxidative phosphorylation is associated with the transfer of electrons down
the electron transport chain and passage of protons across mitochondrial membranes.…read more

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Anaerobic respiration
Glycolysis followed by the production of ethanol or lactate and the regeneration of NAD in anaerobic respiration.
The purpose of lactate
fermentation is to,
regenerate NAD, so
glycolysis is continued and
some ATP is produced to
continue some metabolic
processes.…read more

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Respiration…read more

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Respiration…read more


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