Question

Which of the following statements about cellular respiration is false?

Answer

Cellular respiration is controlled by feedback inhibition.


Cellular respiration yields 36 to 38 molecules of ATP per molecule of glucose.


It proceeds in three stages: 1) glycolysis, 2) the citric acid cycle, and 3) oxidative phosphorylation


Plants do not conduct respiration.


Carbon dioxide and water are byproducts of respiration.

Answer 1

all 0f these are true???? LOL....
right???

@mrdoldum

Answer 2

@Tutormenoq2 Give me a second. I think there might be a some very specific, subtle issues.

Answer 3

@mrdoldum if anything, I would go with A, but I think that is true also:(

Answer 4

@Tutormenoq2 It is A. I had to go make sure I recalled feedback inhibition correctly and that it was appropriate to say OxPhos occurs after the citric acid cycle (which was called Krebs cycle when I was in high school). Feedback inhibition is when the final product of the metabolic pathway inhibits the pathway. I don't think it would be correct to say this for cellular respiration because in each step the product not inhibit the pathway.

In glycolysis I believe the product is only used by the citric acid cycle and does not inhibit the next round of glycolysis. In the citric acid cycle the starting chemical is actually the "end" product and is used to do another cycle, so definitely no inhibition there. As for OxPhos, I am not 100% sure, I'd have to read more, but given that I am very confident that it is false for the citric acid cycle I think A is the answer, as you did.

Answer 5

Thought so, just making sure :)