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Fermentation
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WHAT IF THERE IS NO OXYGEN?
IF THERE IS OXYGEN (_____________) = ANAEROBIC = AEROBIC
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Related metabolic processes
Fermentation: alcohol~ pyruvate →ethanol lactic acid~ pyruvate → lactate
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ALCOHOLIC FERMENTATION
_______ +_____ →__________ + ______ + _____ PYRUVIC ACID ALCOHOL CO2 NAD+ Happens when yeast makes bread dough rise CO2 bubbles make air spaces in bread Alcohol evaporates during cooking
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ALCOHOLIC FERMENTATION
_______ +_____ →__________ + ______ + _____ PYRUVIC ACID ALCOHOL CO2 NAD+ Used to make alcoholic beverages
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LACTIC ACID FERMENTATION
_______ +_____ →______________ + ________ PYRUVIC ACID LACTIC ACID NAD+ Happens in muscles during exercise when body can’t get oxygen to tissues fast enough. Lactic acid builds up in muscles causing soreness
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LACTIC ACID FERMENTATION
_______ +_____ →______________ + ________ PYRUVIC ACID LACTIC ACID NAD+ Happens when bacteria are used to make foods and beverages like yogurt, cheese, buttermilk
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WHY DO FERMENTATION? WHY NOT JUST KEEP MAKING ATP USING GLYCOLYSIS?
WITHOUT OXYGEN, PYRUVIC ACID ___________ and all the _______ carriers get full. Eventually glycolysis will builds up NAD+ NAD+
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→ → FERMENTATION HAPPENS so cells can ____________________
PYRUVIC ACID _______ +_____ →__________ + ______ + _____ CO2 NAD+ ALCOHOL → NAD+ LACTIC ACID ______ → You get the NAD+ carriers back FERMENTATION HAPPENS so cells can ____________________ needed to keep glycolysis going REGENERATE the NAD+
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