Which of the following reactions in glycolysis produce ATP or NADH?
a. 1,3-bisphosphoglycerate to 3-phosphoglycerate

Question

Which of the following reactions in glycolysis produce ATP or NADH?

a. 1,3-bisphosphoglycerate to 3-phosphoglycerate

Accepted Answer

All right. Hello everyone. So this question says to choose the correct statement about the glycolysis step where 13 bis phospho glycate is converted to three phospho glycate. Now, here we also have four different answer choices labeled A through D which we'll go through individually later on. But for now, let's just give some context about this particular stage or sorry step of glycolysis. So the reaction in question is where 13 bis phospho glyceride or 13 BPG is converted into three phospho glycate or three PG for short. So recall first and foremost that this particular reaction takes place in the later half of glycolysis. This later half of glycolysis is known as the payoff phase because these later reactions are associated with the production of ATP that we see as a result of glycolysis. Now, the enzyme responsible for this reaction is known as phospho Glycate kinase or PG kinase as I'm writing here. So what's happening as a consequence of this reaction? Because if you understand what's happening, you can understand the other products that could form after each reaction. So here, right, what's worth mentioning is that our starting material? That's 13. BPG has two phosphate groups. One on position number one and the other on position number three. So what that means in comparison now is that our product has one less phosphate group because three phospho glycate has only one phosphate group on carbon. Number three. So what happened to that other phosphate group? Well, that other phosphate group was used to produce one equivalent of ATP because you take that phosphate group, give it to one molecule of AD P adenosine diphosphate and then produce a TP. So now let's examine each answer. Option to see which one matches what we talked about earlier. Starting off with option A which says that N A positive is consumed during this conversion. This is not true, right? Because recall that N ad positive is an electron transporter involved earlier on in glycolysis. Now N ad positive is especially relevant during the conversion of glyceraldehyde three phosphate or G A three P into 13 bis phospho glycate. So the step before, so this specific step where 13 BPG is converted into three phospho glycate does not involve N ad positive. Moving on. Now to option B, it says that FA is reduced to FA DH two during this conversion. This if you recall is also incorrect. Why? Because recall that F AD and FA DH two are not involved in glycolysis. N ad positive and N A DH are the primary electron transporters of glycolysis rather F ad and fa DH two are associated more with processes such as the citric acid cycle and the electron transport chain, not glycolysis. All right. So let's move on then. Option C says that A DP is produced during this conversion. This is very close, right? But it's still not true, right? Because as mentioned before, one of the phosphate groups of 13 bis phospho glycate is removed from the carbon chain and given to a molecule of adenosine diphosphate. This means that a TP is produced instead. And that's exactly what option D is saying, which means that that is our correct answer. ATP is produced during this conversion and there you have it. So with that being said, thank you so very much for watching and I hope you found this helpful.

Which of the following reactions in glycolysis produce ATP or NADH?
a. 1,3-bisphosphoglycerate to 3-phosphoglycerate

Verified video answer for a similar problem:

Key Concepts

Glycolysis

ATP Production

NADH Production

Which of the following reactions in glycolysis produce ATP or NADH?a. 1,3-bisphosphoglycerate to 3-phosphoglycerate

Verified video answer for a similar problem:

Key Concepts

Glycolysis

ATP Production

NADH Production

Which of the following reactions in glycolysis produce ATP or NADH?
a. 1,3-bisphosphoglycerate to 3-phosphoglycerate