End products and results
The Products of the Krebs Cycle
-2 ATP’s
-2 FADH2‘s
- -Glycolysis: 2 ATP’s and 2 NADH’s (See Glycolysis for more information)
- -Pyruvate Oxidation (two times): 2 NADH’s (See The Preparatory Stage for more information)
- -Krebs Cycle (two times): (See Krebs Cycle for more information)
-2 ATP’s
-2 FADH2‘s
Converting the energy to ATP:
To perform cellular respiration the cell needs to produce at least 38 ATP’s. The cell produces all 38 ATP’s from different sources.The first source is by performing glycolysis (see glycolysis page to learn more). Glycolysis produces 2 ATP’s and 2 NADH’s. The second source is the oxidation of the two pyruvates produced by glycolysis. This oxidation process (two times) gives us 2 NADH’s. The third source is the actual Krebs Cycle (two times). This process gives us 2 ATP’s, 6 NADH’s, and 2 FADH2’s. |
Overall we have 4 ATP’s 10 NADH’s and 2 FADH2’s. We do not have enough ATP’s to perform Cellular Respiration yet, but we do have enough materials to produce enough ATP’s to perform this specific task.
Through the process of the Electron Transport Chain, NADH’s and FADH2’s are oxidized and transformed to ATP’s. Every time that one NADH passes through the Electron Transport Chain, it produces 3 ATP’s. When our 10 NADH’s get oxidized and pass through the Electron Transport Chain, we end up with 30 ATP's. Every time that one FADH2 passes through the Electron Transport Chain, it produces 2 ATP's. When our 2 FADH2's get oxidized and pass through the Electron Transport Chain, we end up with 30 ATP's. |
Count of ATP's:
+2 ATP's from Glycolysis
+2 ATP's from Krebs Cycle
+30 ATP's from 10 NADH's
+4 ATP's from 2 FADH2's
____________________________
38 ATP's
The right amount of ATP's to perform Cellular Respiration.
+2 ATP's from Glycolysis
+2 ATP's from Krebs Cycle
+30 ATP's from 10 NADH's
+4 ATP's from 2 FADH2's
____________________________
38 ATP's
The right amount of ATP's to perform Cellular Respiration.
Taken from Khan Academy video.
https://www.khanacademy.org/science/biology/cellular-respiration/v/krebs---citric-acid-cycle Made by Massimo Ferraris
https://www.khanacademy.org/science/biology/cellular-respiration/v/krebs---citric-acid-cycle Made by Massimo Ferraris