anonymous
  • anonymous
.
Biology
katieb
  • katieb
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anonymous
  • anonymous
Okay. It took me a long while to understand this graph. Do you understand it?
anonymous
  • anonymous
Take a look at the bottom of the graph. It shows us three different things that we can find, in our small intestine. Hydrochloric acid, Proteins, and Fats.
anonymous
  • anonymous
When our small intestine finds any of these things inside of it, it causes our pancreas to make "pancreatic juice."

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anonymous
  • anonymous
And this pancreatic juice can have different things in it, depending on what was inside the small intestine.
anonymous
  • anonymous
Should I rephrase? Is there something you don't understand?
anonymous
  • anonymous
no I got it.. but im still not sure about the question
anonymous
  • anonymous
Right. We're getting to that.
anonymous
  • anonymous
Again, the kind of juice that the pancreas makes....depends on what is inside the small intestine.
anonymous
  • anonymous
For example, if there is hydrochloric acid inside the intestine..... the pancreatic juice will have a lot of sodium bicarbonate. Take a look at the bar graph again. Do you see that?
anonymous
  • anonymous
yes i do!
anonymous
  • anonymous
Okay. We need to understand the chemistry behind it. When sodium bicarbonate combines with hydrochloric acid..... it makes three things: 1. Salt 2. Carbon dioxide 3. Water
anonymous
  • anonymous
So, again, if there is Hydrochloric acid inside of our small intestine, then our pancreas will make juice, with a lot of bicarbonate it.
anonymous
  • anonymous
This is because we need sodium bicarbonate, in order to react with the Hydrochloric acid, and turn it into three things: 1. Salt 2. Carbon dioxide 3. Water In other words, we need sodium bicarbonate, in order to kind of break down the hydrochloric acid.
anonymous
  • anonymous
So, can you look at the graph and tell me.. when there are fats inside of our small intestine, what kind of juice will our pancreas make? What will there be a large amount of, in the juice?
anonymous
  • anonymous
No.
anonymous
  • anonymous
I mean it IS in the juice.
anonymous
  • anonymous
But take a look at Fats.
anonymous
  • anonymous
hidrocartic acid
anonymous
  • anonymous
There are two bars above fats.
anonymous
  • anonymous
Which bar is higher?
anonymous
  • anonymous
Read what I asked, and tell me what you think.
anonymous
  • anonymous
bicarbonate and digestive enzymes?
anonymous
  • anonymous
Those are the two bars above fats. Which one is higher?
anonymous
  • anonymous
Yes. Great. Here's what it means. If there are fats in our small intestine.... then there will be a lot of digestive enzymes, in our pancreatic juice. You get it?
anonymous
  • anonymous
Here's a question: What if there's Hydrochloric acid in our small intestine? What will there be a lot of, in our pancreatic juice?
anonymous
  • anonymous
is that right?
anonymous
  • anonymous
Right.
anonymous
  • anonymous
And how about proteins? What if there are proteins in our small intestine? What will our pancreatic juice look like?
anonymous
  • anonymous
RIght. There will be an equal amount of both.
anonymous
  • anonymous
Alright. So let's go back to Fats. Again, when there are fats in our small intestine, our pancreatic juice will have lots of Digestive Enzymes in it. (We can see this on the graph.) This is because digestive enzymes are needed, in order to break down fat.
anonymous
  • anonymous
And again, if we have Hydrochloric acid in our small intestine, then our pancreatic juice will have a lot of Bicarbonate in it. Because Bicarbonate is needed, in order to react and break down Hydrochloric acid.
anonymous
  • anonymous
We can also see this on the graph.
anonymous
  • anonymous
Our pancreas produces whatever is needed, in order to break down the things inside of our small intestine.
anonymous
  • anonymous
Let's see it.
anonymous
  • anonymous
It's a little blurry, but I'm pretty sure the first one is pointed at the fat cells. The second one is actually pointed at the "alveoli."
anonymous
  • anonymous
Fat stores energy away for us. Our body uses the energy, whenever it needs it, in order to stay alive. Fat also keeps us warm.
anonymous
  • anonymous
Do you know what "homeostasis" is?
anonymous
  • anonymous
Yeah. It's our body's way of keeping a steady internal environment.
anonymous
  • anonymous
That's right.
anonymous
  • anonymous
No problem. Don't forget to mention the part about how our body stores fat, for energy.

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