How is stomach acid neutralized in the small intestine? Need help with experiment. UPDATE-had to do different question but this still helped. Thank you.

Question

aspenr0324 · Answer

I'm in 10th grade biology, and am struggling to figure out an experiment for this question. All my google research has pulled up nothing, or crap sites, and my family hasn't been able to help me figure out an experiment that works. I don't need a full answer sheet or anything, just basic idea and way to do an experiment for this.

sanoofy · Answer

These cells also produce mucus, which forms a viscous physical barrier to prevent gastric acid from damaging the stomach. Cells in the beginning of the small intestine, or duodenum, further produce large amounts of bicarbonate to completely neutralize any gastric acid that passes further down into the digestive tract.

aspenr0324 · Answer

So... correct me if I'm wrong, but from what I understand the two basically cancel each other out? The bicarbonate cancels out any gastric acid that could go down the digestive tract. Would I be able to do an experiment that represents this? Like putting something inside a balloon maybe having that represent the viscous physical barrier? The only experiments I have been able to find anywhere involve having to use iodine, and we don't have any nor do any of the stores near me. There isn't anywhere I can get iodine so far.

aspenr0324 · Answer

I had to change the question to, "Does amylase break down starch?" and do experiment off that. Your answer still helped though, @Sanoofy . Thank you!

sanoofy · Answer

No problem and ok!