Complete the table.

Question

Complete the table.

Accepted Answer

Hi, everyone. Let's take a look at our next problem. It says match the process with its description. And we have a table with four different processes labeled P glycolysis, Q link reaction R creb cycle and S respiratory chain. Then we have five descriptions. So we're going to have one extra description that isn't used and we'll read through these one by one in just a minute. Um but we'll take them one at a time and discuss each one as it comes. Then our problem, the format of it says select an option that includes correct matching. We have four answer choices A through D, each of which has a different set of matching numbers and letters here. Our descriptions are numbered Roman numerals, one through five. So again, rather than read all of these out rather tediously, we'll read them one at a time as we talk about the problem. So let's think about, we have glycolysis, link reaction creb cycle and respiratory chain. So we're talking about the different processes as part of aerobic respiration. So let's think about these steps and kind of basically what's going on and then we can match them to our descriptions. So we start with glycolysis and we know this is when we start with glucose and it ends up being converted to two molecules of pyruvate. And this step itself provi produces a small amount of ATP. Then we have this link reaction also known as pyruvate oxidation where pyruvate ends up getting converted into acetyl coa. And this is to let that ace coe enter the Krebs cycle or the Calvin cycle. And in the creb cycle that acetyl coa is going to end up being converted all the way into carbon dioxide, generating a lot of a TP. So about 36 molecules of a TP. So that's kind of the main a TP generator there some directly and then some due to um producing N A DH and FA DH two, which will then go on in the electron transport chain to generate all these A TPS. And then, as mentioned, we have our respiratory chain or electron transport chain where we have N A DH fa DH two as electron carriers delivering electrons. And in a very broad outline which we can go into more detail if we need it, those electron carriers deliver electrons that go through the electron transport chain, dropping in energy as they go along and going to oxygen 02 is the final electronic cept. This drives a TP synthesis through the process of chem osmosis, but we'll kind of leave it there unless we need any more detail. So let's go to our chart and try and match these descriptions. So first we have P glycolysis. We know this is our first step in the conversion of glucose to pyruvate. So let's see what matches here. We have. Number one, it produces acetyl coa CO2 and N A DH. Well, that's not glycolysis. But if we look down at the outline, we made, we see that acetyl coa is produced in the link reaction. So this is going to match letter Q, the link reaction. Now let's move on to number two, it uses oxygen and produces a maximum amount of ATP. Well, this is the way where I drew my diagram might be a bit misleading because I drew the creb cycle is yielding about 36 molecules of A TP. But these are not directly synthesized from the creb cycle. There's some A TP directly, but the vast majority comes as a result of the electron transport chain. So when we talk about using oxygen and producing the maximum of a TP, that's going to be our electron transport chain or as it's called here, respiratory chain, which is letter S. So we'll put that there little circle around it. So we can see it clearly because that does use oxygen as an electronic receptor. Oxygen is not used in the creb cycle. So sometimes we can get a little mixed up since we often draw that a TP yield is coming directly from the creb cycle. But it's by means of the electron transport chain. The reb cycle is what produces that N A DH and FA DH two that then through the electron transport chain generates those a TP molecules. Our next description is number three, it always takes place in the cytozole and yields a TP. Well, we didn't talk about this in our summary, but our whole process of aerobic respiration takes place in two different places. And that's why we have a linking reaction glycolysis takes place in the cytozole of the cell. The crep cycle is happening in the mitochondrial matrix. So when we're talking about happening in the cytozole, we'll be looking at glycolysis and it does produce a little bit of A TP. So P glycolysis belongs to number three description. Now we're on to number four, it yields ethanol and carbon dioxide, but we talk about yielding ethanol. We're thinking about fermentation. Ethanol is not a product of aerobic respiration. So number four is not going to fit any of our descriptions because it's a result of fermentation. So let's move on to number five, which says it takes place in mitochondria and produces N A DH fa DH two A TP and carbon dioxide. Well, this is going to be our crib cycle. Letter R. We talked about a pro causing the production of A TP uh some directly and then some indirectly through the production of N A DH and FA DH two and then carbon dioxide is a result of the breakdown of the acetyl coa that's where the carbons go. So let's look at our matching and see what would be our answer letter choice here. So we'll look for our different options. We see letter A as first, it has P being description number one. Well, this is not true because we have Q as description number one. So cross that right out now we're on to choice B as P as number three. Well, that's the match we made Q as number one. That's correct, R as number five. That's correct. And S as number two also correct. So here we are with choice B all of our correct matching processes and description we have p uh glycolysis takes place in the cytozole yields a TP Q link reaction produces acetyl coa carbon dioxide and A DH R number five taking place, that's the crab cycle taking place in mitochondria producing N A DH fa DH two A TP and carbon dioxide and S the respiratory chain matching. Number two, it uses oxygen and produces the maximum amount of A TP. So we have our correct answer here which is letter B P three Q one R five and S two. See you in the next video.

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