Fermentation

Cards (17)

  • Fermentation allows the body to make small amounts of ATP in the absence of oxygen.
  • Fermentation is anaerobic respiration.
  • Two types of fermentation are lactic acid fermentation and alcoholic fermentation.
  • The goal of fermentation is not to make ATP, but to return NAD+ to glycolysis.
  • With oxygen, glycolysis produces ATP.
  • Without oxygen, NADH cannot donate its electrons, so we run out of NAD+ to accept electrons, therefore glycolysis stops.
  • Lactic Acid Fermentation uses a chemical reaction that converts pyruvic acid to lactic acid.
  • Pyruvic Acid + NADH -> Lactic Acid + NAD+
  • Organisms uses one type of fermentation, not both.
  • Bacteria and humans use lactic acid fermentation.
  • The body uses ATP in muscles for quick bursts of energy and ATP made by lactic acid fermentation.
  • A buildup of lactic acid causes burning in muscles and can be removed by oxygen.
  • Cellular respiration is the only way to generate a supply of ATP.
  • Alcoholic Fermentation is used by yeasts and other microorganisms which produces ethyl alcohol and carbon dioxide.
  • Pyruvic Acid + NADH -> Alcohol + CO2 + NAD+
  • Both types of fermentation are used in food production.
  • Alcohol evaporates which is why you cannot taste it in bread.