Part 1. - Label the following: substrate (s), enzyme, active...

Part 1. - Label the following: substrate (s), enzyme, active site, and product (s). Part 2. - Draw a metabolic pathway represented by the diagram below. Part 3. - The following statements refer to the metabolic pathway in part 2 - TRUE/FALSE a. _________The model shows one enzyme at three different times. b. _________The amount of final product produced depends on the abundance of substrate A. c. _________The triangle is the product of one enzyme and the substrate of another. Part 4. - Consider the two-step metabolic pathway: A—(enzyme 1)—>B—(enzyme 2)—>C How would inactivating enzyme 1 affect the concentrations of molecules A, B, and C relative to what they would be if the pathway were fully functional? A. A and B would increase; C would decrease. B. A and B would decrease; C would increase. C. A would increase; B and C would decrease. D. A would decrease; B and C would increase.

Transcript

00:02 So you're looking at a diagram so you can see that this is an enzyme and substrate complex.

00:15 So this is the enzyme and you have two substrate.

00:24 The substrate fit into the active side physically and the active site is right here is where the substrate contact enzyme.

00:45 And then, obviously, the enzyme catalyzed the chemical reaction, release the product, and then this is the product, what we're looking at.

01:10 And enzyme, again, has the empty active side that there is ready to receive some other substrate that will fit in there.

01:19 So this is how we label all these structures.

01:23 So again, second, show you a metabolic path we represented by a diagram below.

01:28 The second diagram can be represented by a process that the threatening, one of an amino acid, go through several steps to produce, intermediate, one all the way to five, and eventually is being converted into isolucin, a different amino acid.

02:02 So the bottom line is that you start with the substrate, and it goes through several enzymes and each time you produce a product which is the substrate of the next enzyme and then you have this a long pathway eventually you'll have your final product so this is a substrate and it goes through several enzymes one all the way to five enzyme and it become the final product now part three the following statement referred to the metabolic pathway part two let's see true force 8.

02:48 The model shows one enzyme at three different times.

02:51 So part three, this is two, this is one, the first one is false, wrong.

03:03 It show three different enzyme, so in this case, and each enzyme has a different active site and also use different substrate.

03:35 The amount of final product produced depends on abundance of substrate.

03:40 So i assume substrate a is going to be in the beginning.

03:44 So this is true because substrate a decide the amount of intermediate a and also all the way 2, 3, 4, and 5, obviously it also decides the final amount of product.

04:02 The product, the final product, amount depends on the first substrate.

04:39 It's a chain reaction, so then that's why each substrate will decide the amount of the next intermediate.

04:50 And, of course, the intermediate would decide the amount of the final product...

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