bio exam guide review 6.Feed back regulation in cellular respiration and 5.What happens to the oxygen that is used in cellular respiration? 4.What must happen to amino acids before they can be used in catabolic reactions? 3. What is decarboxylation? 2.

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when is co2 removed in cellular respiration

krebs cycle

what happens to the oxygen that is used in cellular respiration

oxygen accepts electrons and takes up protons to form water.

What is decarboxylation?

removal of CO2

what must happen to amino acids before they can be used in catabolic reactions?

undergo deamination to remove the amino group

fermentation (anaerobic respiration)

Process by which cells release energy in the absence of oxygen

Phosphofructokinase is

allosterically inhibited by ATP and/or citrate

how does glycolysis proceed in the absence of oxygen?

fermentation occurs

What stage of the cellular respiration can occur in human cells with or without oxygen present?

glycolysis

Remainder of the amino acid is converted to a molecule that enters

glycolysis or the Krebs cycle


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