Destroyer BIO 77??

[sajjy]

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It says that Kreb's cycle produces 3NADH, 1FADH2 and 1GTP per cycle.

But isnt it produces 3NADH, 1 FADH2 and 1 ATP per cycle.
Where is this GTP coming from? I have read Campbell also and it doesnt say anything about GTP.

 

[rose786]

It's a mistake, I'm pretty sure. I caught another mistake in the Bio section too, something about classification. Maybe I just have an older edition.

A side note: Did anyone else notice the missing solutions in the QR section? Weird.

 

[Chga]

Destroyer is right.
it produces GTP.. which gets turned into ATP later
notice Guanine and Adenosin are both Purines ..(similar structures)
but GTP is correct.
I checked the Leininger's Biochemistry book.

 

[rose786]

Destroyer is right.
it produces GTP.. which gets turned into ATP later
notice Guanine and Adenosin are both Purines ..(similar structures)
but GTP is correct.

😕

That isn't in any book I read. All that I recall is that the electron transport chain makes an electrochemical gradient, and ATP synthase uses that to make ATP. I guess the ATP has to come from somewhere. I'm off to wiki it...

 

[Chga]

see b/w step 5 and 6http://library.thinkquest.org/C004535/media/kreb_cycle.gif

 

[rose786]

^ makes sense. Serves me right for only learning the overall rxn and not the intermediates.

 

[TheWiredNerv]

He's right, Kreb's uses GTP. I don't find it useful to really memorize numbers for aerobic respiration, especially Kreb's Cycle. They are always changing and none of the literature can support one number over the other.

 

[joonkimdds]

does this mean it is WRONG to say Kreb cycle makes 1 ATP?

 

[TheWiredNerv]

I guess directly.

 

[hashemiaan]

It says that Kreb's cycle produces 3NADH, 1FADH2 and 1GTP per cycle.

But isnt it produces 3NADH, 1 FADH2 and 1 ATP per cycle.
Where is this GTP coming from? I have read Campbell also and it doesnt say anything about GTP.

GTP is right.

 

[Mamona]

Kaplan blue book mentioned in page 108. I am surprise about it, no good book to study biology but only one that metioned on the spot. Campbell also talk about but only in one picture.

 

[TheWiredNerv]

No general book will dissect the cycle down in detail. You'll need to find a molecular biology or biochemistry book (the later probably goes into more detail) to get a lot of detail on it. That much detail isn't necessary for the DAT though.