Glycolysis and Fermentation Cellular Respiration Process by which

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Glycolysis and Fermentation

Glycolysis and Fermentation

Cellular Respiration Process by which cells break down organic compounds to produce ATP Both

Cellular Respiration Process by which cells break down organic compounds to produce ATP Both Heterotrophs and Autotrophs use cellular reproduction to make CO 2 and water from organic compounds The products in cellular respiration are the products in photosynthesis Two Stages Glycolysis Aerobic Respiration Glucose

Photosynthesis/Cellular Respiration

Photosynthesis/Cellular Respiration

ATP Production

ATP Production

ATP Adenosine Tri-Phosphate Composed of 3 high energy phosphate bonds Is essential for a

ATP Adenosine Tri-Phosphate Composed of 3 high energy phosphate bonds Is essential for a cell to perform all the tasks necessary for life

Equation for Cellular Respiration

Equation for Cellular Respiration

Glycolysis Begins cellular Respiration in the cytosol Six-carbon glucose is oxidized to from two

Glycolysis Begins cellular Respiration in the cytosol Six-carbon glucose is oxidized to from two three-carbon pyruvic acid molecules After glycolysis, the cell gains 2 ATP Molecules ATP

Glycolysis

Glycolysis

Fermentation If Oxygen is not present, some cells can convert pyruvic acid with some

Fermentation If Oxygen is not present, some cells can convert pyruvic acid with some additional biochemical pathways into other compounds This process is Fermentation does not produce ATP but does replenish NAD+ This replenishment allows for continued production of ATP in glycolysis

Cellular Respiration vs. Photosynthesis

Cellular Respiration vs. Photosynthesis

Lactic Acid Fermentation In Lactic Acid Fermentation, an enzyme converts pyruvic acid into lactic

Lactic Acid Fermentation In Lactic Acid Fermentation, an enzyme converts pyruvic acid into lactic acid. Ex) When you do exercise extensively and are lacking sufficient oxygen, your body produces lactic acid in your muscles

Fermentation

Fermentation

Alcoholic Fermentation Some plants and unicellular organisms, such as yeast, use a process called

Alcoholic Fermentation Some plants and unicellular organisms, such as yeast, use a process called alcohol fermentation to convert pyruvic acid into ethyl alcohol and CO 2

Two Types of Fermentation

Two Types of Fermentation

Conclusions on Glycolysis and Fermentation In Glycolysis, only about 2% of the energy available

Conclusions on Glycolysis and Fermentation In Glycolysis, only about 2% of the energy available from the oxidation of glucose is captured as ATP Much of the rest of the energy is still held in the Pyruvic Acid Glycolysis alone or as part of fermentation is not very efficient at transferring energy from glucose to ATP