Biology experiment help, PLEASE I am so stuck.

Question

anonymous · Answer

Help me create an experiment for the question: How is stomach acid neutralized in the small intestine?

frostbite · Answer

What is your hypothesis? :)

frostbite · Answer

I guess you've learned that we only try to falsify our hypothesis, we can never say it is "true" instead we can say "as we can't falsify it we have to assume is the the most reasonable answer"

anonymous · Answer

I don't have one o: @Frostbite

frostbite · Answer

Then we need to make one before we can begin designing a experiment :)

frostbite · Answer

What if I provide you some theory and you write a hypothesis deal?

anonymous · Answer

deal!

frostbite · Answer

We know from digestion in the small intestines that the pancreas aids a lot. It provides chemical digestion by producing an alkaline solution rich in hydrogencarbonate as well as several enzymes. The hydrogencarbonate neutralizes the acidity of chyme (stomach acid and more) and acts as a buffer.

anonymous · Answer

So my experiment can be that if I eat something the pancreas will digest my food? @Frostbite

frostbite · Answer

Emmm... a posibillity... don't know if I would be allowed to do such an experiment however.. :P

anonymous · Answer

please just help me or don't I am clueless about this and very behind I dont have time to sit here and discuss this all day. @Frostbite

frostbite · Answer

Well lost the attitude then.
We use the fact that sodium bicarbonate is stimulated from pancreas by secretin from S cells. Using a irreversible drug than can bind to the to the receptor that is the target for secretin (SCTR) we can prevent sodium bicarbonate being released. Using a simple simple pH test we should predict that when the irreversible drug is added the pH should be higher (almost equal to the stomach) than if the irreversible drug wasn't there. This procedure have to be in-vitro as this can/will be be lethal testing.
Or we can do a simple SCTR-knockout.

frostbite · Answer

Designing experiments is very very hard and can take years.

aaronq · Answer

"please just help me or don't I am clueless about this and very behind I dont have time to sit here and discuss this all day."

wow