Exam Review - Chapter 14

Glycolytic intermediates cannot leave cell a

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Unformatted text preview: Acetyl group is fully oxidized by the citric acid cycle Electrons are transferred to O2 to form H2O 2. Reduction to lactate via lactic acid fermentation in hypoxic conditions, NADH cannot be reoxidized to NAD+, but NAD+ is necessary as an electron acceptor for further oxidation of pyruvate In this case, pyruvate is reduced to lactate, accepting electrons from NADH 3. Pyruvate is converted to ethanol in alcohol fermentation Coupling an exergonic and endergonic process Conversion of glucose to pyruvate is exergonic Formation of ATP is endergonic Phosphorylated intermediates: 1. Glycolytic intermediates cannot leave cell a. conservation of energy, no longer needed to retain phosphorylated intermediates b. Phosphorylation of glucose ensures that pathway intermediates remain in the cell 2. Phosphoryl groups are essential components in the enzymatic conser...
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This note was uploaded on 02/06/2014 for the course BCHB 501 taught by Professor Jessicajones,elliottcrooke,ericgalsgow,marybethmartin during the Fall '12 term at Georgetown.

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