Intro to Coenzymes - Video Tutorials & Practice Problems
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concept
Intro to Coenzymes Concept 1
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Many reaction we will see involve Renno reactions catalyzed by dehydrogenase. Now, these are just a subclass of oxido reductase and what comes to dehydrogenase. They require co enzymes to become active. Now, here we're gonna talk about different types of co enzymes and we're gonna say the most co on common co enzymes we will need to know are the following. So the first one we know is a TPATP. Here is composed of three things. It's composed of our adenine nitrogenous space are rivals sugar and then our three phosphates. Next, we have N AD plus and think of the next three as different variations of the A TP molecule. So all of them have this ad P portion which is adenosine diphosphate and connected to it is this new portion to make it something different. Here. For N AD plus. After the adenosine diphosphate, we have our ch two group connected to a ribo sugar again. And then we have this nitrogen uh portion which is nico tide. Next, we have F AD F AD we have our adenosine diphosphate portion. We have our riot which is an alcohol portion and then flavor. Now remember that these two things must be involved in some way within the citric acid cycle. When we talked about food metabolism, we talked about the third step involving these two in for the production of N A DH and fa DH two. And then finally, we have coenzyme A which has the ad P portion. Again, the pantothenic acid and then we have amino ethane thy portion. You may also notice that these are in some type of mustard color because those are the sites of some of the redox reactions we're going to see because remember we said that these are involved in redox reactions. Those are the sites where it will occur. Now, there are other co enzymes that are important, but their structures are too complex and beyond the scope of the core. So it's less important to know what they look like. It's more important to know that they are also common types of co enzymes. And those will be the co enzymes of B 12 and Q, right. So these would represent our most common types of co enzymes.
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Intro to Coenzymes Example 1
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In this example, we have to identify the substrate coenzyme and product for the following reaction which involves the enzyme succinate, dehydrogenase. All right. So we're gonna say here, succinate would have to be our substrate because we said earlier that one of our common coenzyme is F ad. The question doesn't ask this, but we know that this ends with ace. So this would represent our enzyme, the enzyme and this coenzyme together make it active in order to change our substrate succinate into fumarate, fumarate. Here would have to be our product in this process. We've created FA DH two. So F AD has been transformed into FA DH two. Here, this is just another product but not the main product that we're concerned with. So here again, succinate will be our substrate. F AD is one of our common co enzymes. We have our enzyme that works in conjunction with it to create fumarate, which is our product.
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