3 molecules
2 molecules
4 molecules
6 molecules
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Discussions (14)

Correct Answer: C. 4 molecules
Glycolysis is the first stage of cellular respiration, occurring in the cytoplasm of cells. It breaks down one molecule of glucose (6-carbon sugar) into two molecules of pyruvate (3-carbon).
During glycolysis:
4 ATP molecules are produced (gross production)
2 ATP molecules are used in the initial steps
So the net gain is 2 ATP, but the total produced is:
4 ATP molecules, that’s what the question is asking.

The correct answer is B) 2.
Here's the calculation:
4 ATP are produced during glycolysis.
2 ATP are consumed.
Net gain = 4 ATP - 2 ATP = 2 ATP.

The correct answer is B. 2 molecules (net gain) or more accurately for total produced, it's C. 4 molecules, but 2 are used up during the process. So, the net gain is 2 ATP molecules, but the total produced is indeed 4. In most contexts, the net gain of 2 ATP is what's emphasized. However, given the phrasing "total number of ATP produced," the best technical answer would be C. 4 molecules.

Greetings, The Myschool Team.
The correct answer is C( 4 molecules) and not B(2 molecules). Glycolysis produces 4 ATP molecules, but two is consumed, like you have explained. However, this means that the total number of ATPs produced is 4, but the net number produced is 2. Thus, the correct answer is C(4 molecules) and not B(2 molecules). Thank you.

although the correct answer is 4 molecule but I'm sure the examiner answers should be 2 molecule cause if we are to talk about it a-level embden Meyerhofd pathway

yh since it was specifically stated in the question for us to identify the TOTAL number of ATP produced the answer should be 4 ATP


