- In the process of glycolysis, a net profit of two ATP was produced, two NAD+ were reduced to two NADH + H+, and glucose was split into two pyruvate molecules.

- When oxygen is not present, pyruvate will undergo a process called fermentation. In the process of fermentation the NADH + H+ from glycolysis will be recycled back to NAD+ so that glycolysis can continue.

- First, pyruvate is decarboxylated (CO2 leaves) to form acetaldehyde. Hydrogen atoms from NADH + H+ are then used to help convert acetaldehyde to ethanol. NAD+ results.

Facultative anaerobes

- organisms that can undergo fermentation when deprived of oxygen. Yeast is one example of a facultative anaerobe that will undergo alcohol fermentation.

- Two pyruvates are converted to two lactic acid molecules, which ionize to form lactate. In this process two NADH + H+ are converted to two NAD+ - Our muscle cells can undergo this process when they are in oxygen debt. If enough oxygen is not present to undergo aerobic respiration, pyruvate will undergo lactic acid fermentation.

- NADH + H+ to be oxidized to form NAD+ so that glycolysis will continue

Which statement regarding fermentation is true?

- In alchohol fermentation, pyruvate is first converted to acetaldehyde in a decarboxylation reaction and then converted to ethanol, forming NAD+

Fermentation differs from cellular respiration because

- fermentation does not require oxygen

An important principle of fermentation is that

- O2 is not used as a final electron acceptor

4.2.3 Anaerobic Respiration: The Fermentation of Pyruvate Flashcards by Irina Soloshenko

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4.2.3 Anaerobic Respiration: The Fermentation of Pyruvate Flashcards

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