Question about ATP and cellular respiration ?

[Kobebucsfan]

The maximum ATP yield from the oxidation of one molecule of glucose to 6 molecules of CO2 is ............?


Why is the answer 36 ?

---

Members don't see this ad.

 

[lyjw88]

glycolysis - 6 ATP
pyruvate to acetyl CoA - 6 ATP
Krebs cycle - 24 ATP

total comes to 36 ATP

 

[Kobebucsfan]

glycolysis - 6 ATP
pyruvate to acetyl CoA - 6 ATP
Krebs cycle - 24 ATP

total comes to 36 ATP

i dont think thats right

 

[buckey]

It should be
glycolysis- -2 ATP (cost) + 4ATP + 6ATP (NADH) -2 ATP (active transport of NADH)
pyruvate to acetyl CoA- 6 ATP
Krebs- 2 ATP + 18 ATP (NADH) + 4 ATP (FADH2)
= 36

 

[lyjw88]

i dont think thats right

It is right..I converted all NADH (yields 3 ATP except during glycolysis) and FADH2 (yields 2 ATP) into ATP to simplify..

 

[11LB11]

Glycolyis: 2 ATP and 2 NADH
Pyruvate Oxidation: 2 NADH
Krebs Cycle: 2 ATP, 6 NADH and 2 FADH2
ETC: Uses the 10 NADH (each yields 3 ATP) and the 2 FADH2 (Each yields 2 ATP) to make an "ideal" 30 ATP from NADH and 4 ATP from FADH2.
Total ATP from 1 glucose molecule = 38 ATP.
Some places says that it is 36 some 38, might as well know both numbers.

 

[lyjw88]

Glycolyis: 2 ATP and 2 NADH
Pyruvate Oxidation: 2 NADH
Krebs Cycle: 2 ATP, 6 NADH and 2 FADH2
ETC: Uses the 10 NADH (each yields 3 ATP) and the 2 FADH2 (Each yields 2 ATP) to make an "ideal" 30 ATP from NADH and 4 ATP from FADH2.
Total ATP from 1 glucose molecule = 38 ATP.
Some places says that it is 36 some 38, might as well know both numbers.

38 is an old number bacause now it's been proven that 1 ATP has to be compensated to move one NADH from cytoplasm to mitochondria. And there are 2 NADHs that need to go thru this process so it turns out to be 36.

 

[Potatochips]

38 is an old number bacause now it's been proven that 1 ATP has to be compensated to move one NADH from cytoplasm to mitochondria. And there are 2 NADHs that need to go thru this process so it turns out to be 36.

Quoted for truth

38 ATP production in prokaryotes, 36 ATP production in eukaryotes

 

[bharat008]

38ATP production in prokaryotes
36 ATP in eukaryotic cells except in HEART and LIVER where it's 38ATP...