Question

By member
synthesis of ATP in mitochondria requires:
a)NADP
B)FMN
C)Oxygen
d)pyruvic acid

Answer 1

@Frostbite

Answer 2

oxygen

Answer 3

@jigglypuff314 @DollyAcquah
Are ya sure ?? @Abhisar

Answer 4

@shrutipande9 @shreehari499 @GTXMUQSIT @Destinymasha

Answer 5

@shrutipande9 yes

Answer 6

@Frostbite what do you think ??

Answer 7

See krebs cycle requires NAD+ and NADH. NADP is required in light reaction in chloroplast

Answer 8

Yeah..@Abhisar is rite..:)

Answer 9

You could say that oxygen is the right answer during the cytochrome oxidase complex reaction.
But what I am wording about is the answer: Flavin mononucleotide (FMN), which is a prosthetic group found in many dehydrogenates, especially NADH dehydrogenases.

Answer 10

But generally, oxygen is import, as we can reduce it to water. if we can't get rid of the electrons from the excited cytochromes, the whole electron transport chain will stop.

Answer 11

That's what i said, there is difference between NADH and NADPH

Answer 12

That is not what I said. I said that FMN serve as a cofactor for some of the enzymes during the metabolism of for example Krebs cycle.

Answer 13

why is it not D ? :/

Answer 14

pyretic acid is simply a metabolite, and never inters the matrix

Answer 15

Remember that the mitochondria contains 2 membranes. The outer membrane is not that selective as the inner one.

Answer 16

So what would be correct answer O2 or FMN ??

Answer 17

I would personally say so. Because think about it this way, if you can't reduce NAD+ during the Krebs cycle where are the electrons going to come from? ;)

Answer 18

So its NADP O.o ??

Answer 19

No no no, not NADP+ that is used in anabolism only (good thumb rule).

Answer 20

It would be oxygen or FMN.

Answer 21

@Frostbite I dunno the higher level study of this :(
More probably Oxygen, right ???

Answer 22

Yeah go with oxygen :) that is the most safe answer.

Answer 23

Thank you so much all of you ^_^

Answer 24

Oxygen acts as a terminal electron acceptor in aerobic respiration. Its very much required and should be given greater priority than FMN

Answer 25

Well... depends.

Answer 26

flavin mononucleotide (FMN) & iron-sulfur centers are constituents of Complex I or NADH dehydrogenase

Answer 27

and there role as much i know is to pass 2 e- to CoQ and pumps 2 H+ from matrix to inner membrane.

Answer 28

@Frostbite after this discussion i am confused, why FMN will not be the answer ?

Answer 29

That is correct yes, as I said it is a prosthetic group, without it, I don't think you are going to harvest a lot of the electrons from the Krebs cycle, meaning that it is import for the mechanism of oxidative phosphorylation.
Both ubiquinone oxidoreductase (complex I) and succinate-ubiquinone oxidoreductase (complex II) use FMN as prosthetic group, both severing as the electron input for oxidative phosphorylation.
Unfortunately I haven't studied the enzyme mechanism fully, but I could imagine the prosthetic group would interact with ubiquinone.

It is an answer (according to me), but if @sarah786 thinks the level is getting to high, then the most simple answer is usually the correct answer. The other answer simply build on that if we look at the equation for the catabolism of glucose, we see the 6 oxygen, and these oxygen comes from the oxidative phosphorylation.

Answer 30

Sorry when I said catabolism of glucose, I meant the combustion of glucose.

Answer 31

@Frostbite yes may be, but according to me now in this question both the options will be the answer. And if only one have to be selected then oxygen can be opted. Afterall it is oxidative phosphorylation ;)

Answer 32

Thanx all (y)

Answer 33

ohh well...dat was a pretty good discussion i missed....:)

Answer 34

:/ damn I missed too.