Section 4 6 Fermentation Biology Fermentation During normal

Section 4. 6: Fermentation Biology

Fermentation During normal activities (reading or talking to friends) cells can maintain an appropriate oxygen level for cellular respiration

Fermentation During normal activities (reading or talking to friends) cells can maintain an appropriate oxygen level for cellular respiration When a person runs/sprints the body cannot bring in enough oxygen to keep cellular respiration going

Fermentation During normal activities (reading or talking to friends) cells can maintain an appropriate oxygen level for cellular respiration When a person runs/sprints the body cannot bring in enough oxygen to keep cellular respiration going This is when fermentation begins

Glycolysis & Fermentation Under normal conditions with oxygen glycolysis products NADH and pyruvate would move into cellular respiration

Glycolysis & Fermentation Under normal conditions with oxygen glycolysis products NADH and pyruvate would move into cellular respiration When oxygen is not present, then glycolysis continues into fermentation

Glycolysis & Fermentation Under normal conditions with oxygen glycolysis products NADH and pyruvate would move into cellular respiration When oxygen is not present, then glycolysis continues into fermentation Fermentation does not make ATP, but removes electrons from NADH to be recycled back into the glycolysis cycle

Lactic Acid Fermentation 2 ATP 2 ADP Glucose 2 G 3 P Lactic Acid 4 ADP 4 ATP 2 NAD+2 NADH Pyruvate 2 NADH 2 NAD+ Pyruvate enters the fermentation process Two NADH molecules are used to change pyruvate to lactic acid 2 NAD+ molecules are recycled back into glycolysis

Products of Lactic Acid Fermentation does not produce ATP

Products of Lactic Acid Fermentation does not produce ATP It allows glycolysis to continue to produce ATP

Products of Lactic Acid Fermentation does not produce ATP It allows glycolysis to continue to produce ATP Lactic acid is the waste product that builds up in your muscles

Products of Lactic Acid Fermentation does not produce ATP It allows glycolysis to continue to produce ATP Lactic acid is the waste product that builds up in your muscles Eventually broken down and removed from cells

Alcoholic Fermentation Pyruvate and NADH enters alcoholic fermentation 2 NADH are broken down into NAD+ to provide the energy to release CO 2 and make ethanol NAD+ is recycled back into glycolysis

Alcoholic Fermentation Yeast use alcoholic fermentation to provide themselves with energy

Alcoholic Fermentation Yeast use alcoholic fermentation to provide themselves with energy When yeast is used to make bread, the alcohol makes the dough rise

Alcoholic Fermentation Yeast use alcoholic fermentation to provide themselves with energy When yeast is used to make bread, the alcohol makes the dough rise When the bread is baked, the alcohol evaporates and the yeast die

Alcoholic Fermentation Yeast use alcoholic fermentation to provide themselves with energy When yeast is used to make bread, the alcohol makes the dough rise When the bread is baked, the alcohol evaporates and the yeast die Many microorganisms use fermentation, and these microorganisms are important in the digestive system of many animals, including humans