Match the terms (1) ES with the following descriptions:
a. has a tertiary structure that recognizes the substrate
b. is the combination of an enzyme with the substrate
c. has a structure that fits the active site of an enzyme

Question

Match the terms (1) ES with the following descriptions:

a. has a tertiary structure that recognizes the substrate

b. is the combination of an enzyme with the substrate

c. has a structure that fits the active site of an enzyme

Accepted Answer

All right. Hello everyone. So this question is asking us to determine which of the following descriptions matches the enzyme substrate or es complex. So here we have four different answer choices labeled A through D proposing different possible definitions for the enzyme substrate complex. Now, it's worth mentioning that the answer choices distinguish between whether or not this complex is either a permanent or temporary molecule and also what two species come in contact. So let's talk briefly about what it is. Right? Well, recall that when studying how enzymes act on their substrates, we have this generic model. So let's say that we have our enzyme here represented by the letter E with our substrate s now in the beginning of the reaction, they are separate. So at some point, the substrate is going to bind to the active site of the enzyme. Once these two species are connected, we call that the enzyme substrate complex or es now together. So once the substrate is bound to the enzyme, the enzyme is going to start catalyzing its associated reaction. So as a result, the substrate gets modified in some particular way to release a product P. However, the enzyme itself is not going to be modified as a result of this reaction. So once the reaction is complete, we have the product p and the enzyme separate from each other. So you could say that the, that the product is released from the enzyme essentially. So what does this mean for the enter choices that we have? Right. Well, by definition, the goal of an enzyme is to catalyze chemical reactions. It is to catalyze for example, the formation of this substance peak. So by definition, right, the enzyme substrate complex has to be temporary, it has to be short lived because the end goal is to produce the product. So really the enzyme substrate complex is a temporary molecule formed when the enzyme comes into contact with a substrate. But the question is how picky is the enzyme so to speak, right? Because there are answer choices that mention any particular substrate or a specific substrate for the given enzyme. So for that question, we have to recall this concept of specificity when it comes to enzyme or enzymes in general, right? Because a particular enzyme is specifically geared to catalyze a specific chemical reaction. The substrate that it's going to act on is also very specific. So therefore, one given enzyme isn't going to interact with any substrate that it comes across. Rather it's going to only bind to the specific substrate that it normally will act on. Right. So the enzyme won't come into contact with any substrate, it's going to come into contact with its specific substrate and no other. So our answer really is going to be option c in the multiple choice because the enzyme substrate complex is a temporary molecule formed when an enzyme comes into perfect contact with its specific substrate and there you have it. So with that being said, thank you so very much for watching and I hope you found this helpful.

Match the terms (1) ES with the following descriptions:
a. has a tertiary structure that recognizes the substrate
b. is the combination of an enzyme with the substrate
c. has a structure that fits the active site of an enzyme

Verified video answer for a similar problem:

Key Concepts

Enzyme Structure

Enzyme-Substrate Complex

Active Site

Match the terms (1) ES with the following descriptions:a. has a tertiary structure that recognizes the substrateb. is the combination of an enzyme with the substratec. has a structure that fits the active site of an enzyme

Verified video answer for a similar problem:

Key Concepts

Enzyme Structure

Enzyme-Substrate Complex

Active Site

Match the terms (1) ES with the following descriptions:
a. has a tertiary structure that recognizes the substrate
b. is the combination of an enzyme with the substrate
c. has a structure that fits the active site of an enzyme