Glycolysis

Glycolysis
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  • Help! I'm drowning!
  • Maybe you should have swam slower and used an aerobic pathway!
  • Glucose
  • When glucose is used in the body, it begins with a process called glycolysis. In the beginning, 2 ATP is invested in order to turn the Glucose into 2 Pyruvate. In the later part of the process, 4 ADPs are turned into ATP, and 2 NAD+s are turned into NADH.
  • Pyruvate
  • Pyruvate
  • Pyruvate
  • In the mitochondria, pyruvate produced in Glycolysis will enter the Krebs Cycle. With the help of CoA, the pyruvate is turned into a two-carbon chain called Acetyl-CoA. This combines with a four-carbon and creates citric acid, before becoming a five-carbon chain, and eventually a four-carbon chain that can be cycled back to combine with more CoA. Throughout this whole process, 3 CO2 are released, as well as 4 NADH, 1 FADH2, and 1 ATP
  • Krebs Cycle
  • Now you may be wondering: "What happens to the extra NADH and FADH2?" Well, that's where the Electron Transport Chain comes in.
  • HELP!
  • The ETC is a system that allows NADH to dump their electrons and return as NAD+. These electrons travel along a path and eventually produce water molecules. As they travel, they power proton pumps that pump hydrogen ions into the intermembrane space. These protons can flow through a channel and power the ATP Synthase, which produces more ATP. This will keep producing ATP until there are not enough water molecules to accept the ions anymore, and the gradient evens out.
  • Corey Johnsen
  • In total, 38 ATP is gained, and that is why using an aerobic pathway and swimming slower would have been a more effective way of generating ATP for your body!
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