Glycolysis

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by ktf27
Last updated 5 years ago

Discipline:
Science
Subject:
Chemistry
Grade:
11

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Glycolysis

GLYCOLYSIS: - It is the first stage in the Cellular Respiration Process. This is where glucose gets broken down into pyruvate molecules. - It occurs in the cytoplasm. - 2 molecules of ATP are rquired to start glycolysis. -4 molecules of ATP are produced.

Krebs Cycle - It occurs in the mitochondria. - It happens, because it generates a pool of chemical energy from the oxidation of pyruvate, the end product of glycolysis. - At the start, soenzyme A reacts with the pyruvate molecules and carbon dioxide is released. The reslt is the creation of Acetyl CoA. - NADH, FADH, and ATP are produced.

Electron Transport Chain - It occurs in the mitochondria. - Molecules produced from the previous processes are re-oxidized thus releasing energy in the form of ATP. - NADH and FADH2 are needed at the start of this process. - The hydrogen ions created create a high concentration which can then be used to make more ATP.

http://highered.mheducation.com/sites/0072507470/student_view0/chapter25/animation__electron_transport_system_and_atp_synthesis__quiz_1_.html

Fermentation -It occurs when cells do not have enough oxygen for cellular respiration. - It occurs in the cytoplasm. - In both lactic acid fermentation and alcoholic fermentation, ATP is produced.


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