anonymous
  • anonymous
PLEASE HELP!!!
Biology
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
Hi! I'm sorry I've been away. Let's get started.
anonymous
  • anonymous
Okay. Let's look at the first question. What's the optimum pH for each enzyme? Take a look at the graph. Do you see how there are two lines that form hills, on that graph? Each hill is an enzyme. The solid hill is enzyme A, and the dotted hill is enzyme B. Now, look at the top of each hill. The top of each hill is the point where the enzymes work at their best. Question #1 calls it the "optimum," you see there. Look at the top of each hill. What are the pH numbers, for each of the highest points, on each hill? (You can see the pH number line, across the bottom of the graph.)

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
Enzyme A: 3 Enzyme B: 7
anonymous
  • anonymous
Yes! Close enough. Enzyme A looks to be about 3. Enzyme B actually looks like it's a liiiiittle higher than 7. Let's say 7.5, kay? So, let's look at the question again: What is the optimum pH for Enzyme A and Enzyme B? We have our answer now. The optimum pH for Enzyme A is 3 and the optimum pH for Enzyme B is 7.5. The "optimum pH" is the pH level where the enzymes work their best.
anonymous
  • anonymous
Okay, we're onto question #2. Take a look at the graph, with me. Across the bottom of the graph, we have the pH number line. Yes? And on the left side of the graph, we have the "rate of enzyme action," you see? Now, take a look at the graph, and find the place where the pH is 5. What do you notice about the rates, of each enzyme, when the pH is 5?
anonymous
  • anonymous
So for number 2 would it be Enzyme B works faster than Enzyme A when the pH is 5?
anonymous
  • anonymous
You think enzyme B works faster, at a 5 pH? Here, let me ask you this question.... What is the pH number where the two lines touch one another?
anonymous
  • anonymous
The two lines only touch one another, at one place, on the entire graph. What's the pH number, at that place?
anonymous
  • anonymous
Is it 5? On my paper it looks like 4.98.. I can't tell.
anonymous
  • anonymous
lol you're very precise! I like that. Yeah, it is 4.9822323 blah blah BUT we can round it up to 5. So we'll say 5.
anonymous
  • anonymous
Okay, so since the two lines touch one another at pH 5, then that means that when the pH is 5, they have the same exact rate of reaction. Do you get it?
anonymous
  • anonymous
Okay, lol :P and yes ^
anonymous
  • anonymous
And there's our answer for #2!
anonymous
  • anonymous
Now, we're on to question #3. The instructions told us that Enzyme A is in the stomach, and Enzyme B is in the intestines. Question #3 is asking us... What can you tell, about the pH of the stomach? Let's look at enzyme A, which is found in the stomach. We know that Enzyme A works its best, when the pH is 3. Right? So, would you agree that the pH level in the stomach is around 3?
anonymous
  • anonymous
Yes
anonymous
  • anonymous
Okay! That was easy. There's our answer for question #3. We can "infer" that the pH level in the stomach is around 3, because that is where Enzyme A is at its highest "rate of action."
anonymous
  • anonymous
Now, we're on to question #4. It's asking us what we can tell about the pH of the intestine. So NOW we have to look at Enzyme B. And we do the same thing we did with question #3, only this time, we're looking at Enzyme B. Do you think you have an answer?
anonymous
  • anonymous
The pH level in the intestine is around 7.5, because that is where Enzyme B is at its highest "rate of action." Right?
anonymous
  • anonymous
Yep! Perfect.
anonymous
  • anonymous
Okay, now we're on to question #5. It sounds more complicated than it is. Let me go over some facts that we already know: 1. Enzyme B is found in the intestine. 2. Enzyme B can ONLY work, when the pH is anywhere from 4 to 12. (You can take another look at the graph, and see that the dotted line only goes from 4 to 12.) 3. Enzyme B works its best, when the pH is 7.5. Do you understand all of these facts, so far?
anonymous
  • anonymous
Yes, btw, I'm sorry I replied late, my mother called me.
anonymous
  • anonymous
It's okay, I understand. Let's get back into question #5. The question is asking us to pretend that Enzyme A is in the intestines. Let me ask you two questions here: 1. What is the pH range where Enzyme A can work? (From what number, to what number?) 2. What is the "relative pH" of the intestine, that we've mentioned before?
anonymous
  • anonymous
1. Enzyme A can work from pH 0 to pH 6 2. The "relative pH" of the intestine is around 7.5.
anonymous
  • anonymous
Okay! So, if Enzyme A were in the intestine, would it work?
anonymous
  • anonymous
I'm not sure if I'm correct, but I'm saying no because the pH range where Enzyme A can work can't include the "relative pH" of the intestine which is 7.5.
anonymous
  • anonymous
Well that's right, actually. That's right on.
anonymous
  • anonymous
So we know that Enzyme A would not work, in the intestine. Because its working pH is 0 to 6. But the intestine's pH is 7.5. Too high. Now here's another fact: The digestive system needs working enzymes, in order to function. If the digestive system did not have working enzymes, then the digestive processes would stop. Does that make sense to you?
anonymous
  • anonymous
Yes
anonymous
  • anonymous
Okay. So let's look at question #5. It basically asks us... What do you think would happen to the digestive process, if Enzyme A were in the intestine? Do you think you know this one?
anonymous
  • anonymous
The digestive processes of the organism would stop. Right?
anonymous
  • anonymous
Yeah! That's right. Even better yet!....The digestive processes of the organism would not be able to work normally.
anonymous
  • anonymous
Thank you very much!! :)
anonymous
  • anonymous
You're welcome. =)

Looking for something else?

Not the answer you are looking for? Search for more explanations.