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What is the process of glycolysis?

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lehcir | Student | Valedictorian

Posted November 13, 2012 at 5:09 PM via web

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What is the process of glycolysis?

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jerichorayel | College Teacher | (Level 1) Senior Educator

Posted November 15, 2012 at 8:55 AM (Answer #1)

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Glycolysis is the biochemical pathway that converts glucose into pyruvate. The energy released in this reaction is used in order to form the high-energy molecules called the ATP (Adenosine triphosphate) and NADH (Nicotinamide adenine dinucleotide). 

The summary of the chemical equation for the process of glycolysis can be written as:

Glucose + 2 [NAD]- + 2ADP + 2P- ---> 2 Pyruvate + 2NADH +

                                                      2ATP + 2H+ + 2H2O

 

The process can be simplified into three steps.

1. Activation of glucose - 2 ATP molecules will be used to form the biphosphate molecule

2. Splitting of glucose - the 6-carbon molecule will split into two 3-carbon molecule with one phosphate groups attached to it.

3. Energy generation -2 NAD- are reduced to NADH while 2 more P’s are attached to each 3-carbon molecule. By the action of enzymes, ADP will be transformed into ATP. The source of P's comes from the two P's attached to each 3-carbon molecule. 2NADH and 4ATP are formed. Since the reaction initially used 2 ATP, the net ATP produced are 2 ATPs.

**this is only a brief summary of glycolysis.

 

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sodapopjo | Student, Grade 11 | Honors

Posted November 25, 2012 at 8:04 PM (Answer #2)

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The most basic definition of glycolysis is "glucose splitting."

1 glucose in, 2 pyruvate out

Net gain of 2 ATP, with 2 in to drive it and 4 out

2 NADH are released from NAD+

 

The formed pyruvate then continues to the second step of aerobic respiration: pyruvate oxidation, or the formation of acetyl-CoA.

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