[BIO] question

[299678]

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Biological oxidation of glucose resulting in which of the following metabolic end products would yield the largest number of ATP molecules?
a) CH3CHOHCOOH
b) CH3COCOOH
c) CO2 + N2 + H2O
d) CO2 + H2S
e) CO2 + H2O

Need ur brief explanation ! thank you

 

[casper22]

Is it E????

 

[PreDental88]

I would've guessed A. Seems like more alcohols are higher in energy and easier to oxidize than the ether in B. As for C, D, and E, since CO2 is a product of metabolism, I would predict that it would be lowest in energy and yield the least amount of ATP. What's the answer anyway?

 

[jinz]

normal cell respiration results in a lot of ATP... and the end-products are H2O and CO2.

E would be my answer.

 

[casper22]

I would've guessed A. Seems like more alcohols are higher in energy and easier to oxidize than the ether in B. As for C, D, and E, since CO2 is a product of metabolism, I would predict that it would be lowest in energy and yield the least amount of ATP. What's the answer anyway?

A is lactic acid and B is pyruvic acid..

 

[PreDental88]

Lol nvm, I misinterpreted the question and thought it asked which of the following substrates would yield the most ATP.

 

[299678]

Correct Answer is E)

I guess the question stems said "End product" so pyruvate and lactic acid are intermediate

 

[UCB05]

Yep. A and B are not fully oxidized products. Full oxidation of glucose results in CO2 & H2O, with all the reducing power created as NADH/FADH2 used to generate more ATP in the ETC. C and D are not relevant end products of normal glucose metabolism.