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9 Cards in this Set
- Front
- Back
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What is fermentation?
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Anaerobic respiration → without O2
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How many processes are involved in fermentation and which?
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Just one: Glycolysis
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How many ATP and NADH are made?
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ATP: 2
NADH: 2 |
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What happens to the NADH?
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It gets oxidizes while some organic molecules gets reduced, and NAD+ is recycled back into glycolysis
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What are the 2 types of fermentation?
How do they occur? Where do they occur? |
1) Ethanol fermentation: by yeast enzymes decarboxylize (remove CO2 from) pyruvate
• occurs in wines and beers 2) Lactic acid fermentation: pyruvate is reduced, producing lactic acid • occurs in muscles |
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What species usually performs fermentation?
What are the 3 types? |
Microbes
1) aerobes 2) strict anaerobes 3) facultative anaerobes |
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Aerobes
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microbes that can only survive in the presence of oxygen to undergo cellular respiration
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Strict anaerobes
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• microbes that cannot survive in the presence of O2
• must undergo fermentation |
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Facultative anaerboes
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microbes that can live in the presence or absence of O2
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