Match the descriptions below with their corresponding terms.

1. Occurs when energy from a compound containing phosphate reacts with ADP to form ATP
2. Involves formation of ATP via reduction of coenzymes in the electron transport chain
3. Begins with glycolysis
4. Occurs when all active sites on substrate molecules are filled

A. Saturation
B. Oxidative phosphorylation
C. Substrate-level phosphorylation
D. Photophosphorylation
E. Carbohydrate catabolism

Question

Match the descriptions below with their corresponding terms.

1. Occurs when energy from a compound containing phosphate reacts with ADP to form ATP

2. Involves formation of ATP via reduction of coenzymes in the electron transport chain

3. Begins with glycolysis

4. Occurs when all active sites on substrate molecules are filled

A. Saturation

B. Oxidative phosphorylation

C. Substrate-level phosphorylation

D. Photophosphorylation

E. Carbohydrate catabolism

Accepted Answer

Hi, everybody. Let's take a look at the next problem. It says match the descriptions below with their corresponding terms. So we have four descriptions then four terms and then four answer choices, each matching these in different combinations. So rather than doing a lot of repetitive reading, I'll read out the four terms and then we'll walk through our descriptions one by one to see which terms they match best and then find the proper assignment of the descriptions with their terms. So our four terms are a oxidative phosphorylation. B substrate level phosphorylation, C carbohydrate catabolism and D saturation. So let's start with number one, a process that involves the transfer of a phosphate group from a substrate molecule to ad P forming a TP. So phosphate group moved over from one molecule to a molecule of adenosine diphosphate to make a TP adenosine triphosphate. Well, we have a clue right in the name, this is this transfer from a substrate molecule. So this is choice b substrate level phosphorylation. So we'll cross off B now we've used that already. And number two says the process where electrons are transferred from N A DH or FA DH two to 02 through a series of electron carriers. Well, if I just heard this description, I would say electron transport chain, but that's not one of our choices. So let's recall that this process of transferring these electrons starting with N A DH and FA DH two with oxygen as a final electronic acceptor is part of the overall process of oxidative phosphorylation, which whiz is one of our answer choices. So let's match it with a as the best match possible among our choices. Um It's sort of the one half of oxidative phosphorylation. The second half being the phosphorylation part. Notice that there's no phosphate molecule mentioned here. So that transfer of energy due to the electrons going down their uh electrochemical gradient is used to power the transport of protons across the membrane against their concentration gradient. And then they come back down their ingredient through a TP kinase. And that ends up transferring or catalyzing. I should say the transfer of phosphate from AD P to a TP. So we'll put plus hem osmosis, which is that second part of that process. So again, I would, if I just had to come up with the term off the top of my head, I would say electron transport chain, but we need to pick from a group of word terms. So the best match here is oxidated phosphorylation. The number three says the breakdown of carbohydrates into simpler compounds starting with glycolysis. So this will be choice c carbohydrate catabolism. We know that catabolism means breaking down larger molecules into smaller ones. And then in glycolysis, glycolysis, you're starting with glucose, which is a carbohydrate, put that out. And now by elimination, we know that number four, this happens when all active sites on an enzyme are occupied by substrate molecules. And that is choice d saturation. So the enzyme is saturated, it can't catalyze any more of the reaction until it has some open active sites. So let's look for the correct matching that we've come up with here. So we have four answer choices. Choice A has number one being matched to B which is correct, two to A, three to C and four to D and this is correct. So right away A, we've got the correct answer choices matched correctly with description and their corresponding terms. Choice. A see you in the next video.

Verified Solution

Key Concepts

Substrate-level phosphorylation

Oxidative phosphorylation

Carbohydrate catabolism