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FON 241 body digest
how the body breaks down food
| Question | Answer |
|---|---|
| 1. Physical | chewing |
| 1. Chemistry | salivary amylase breaks down polysacchorides (starch) |
| 2. Physical | Churning the bolus into chyme |
| 2. Physical ;; Gastrin | hormone stimulating gastric juice |
| 2. chem #1 | HCI denatures protein (poly peptide) |
| 2. Chem #2 | Pepsin breaks down protein (polypeptides) |
| 2. Pancreas | bicarbonate = neautralizing HCI |
| 2. Liver | Produces bile |
| 2. GB | stores bile |
| 2. Bile | emulsifies fat to form micelles |
| 3. Phys | segmentation |
| 3. Secretin | hormone that stumulates the pancreas |
| 3. cholecystokinin (CCK) | hormone stimulates liver and GB |
| 3. CHO CHEM #1 | pancreatic amylase breaks down polysacchorides (starch) |
| 3. CHO CHEM #2 | intestinal disacchoridases (breakdown of dissachorides into monounsaturated) |
| 3. PRO CHEM #1 | Pancreatic Protease |
| 3. Pro chem #1 ;; Pancreatic Protease | breakdown polypeptides |
| 3. PRO CHEM #2 | Intestinal Peptidase |
| 3. Pro chem #2 ;; Intestinal Peptidase | break down dipeptides to single AA |
| 3. FAT CHEM | Pancreatic Lipase |
| 3. Fat chem ;; Pancreatic Lipase | breakdown triglycerides - mono + 2FFA |
| 3. Monosacchorides (absorbed now) | glucose + galactose abosorbed via active transport => Blood => Liver => rest of cells |
| 3. Amino Acids (absorbed now) | via transport => Blood => liver => rest of cells |
| 3. Fats (absorbed now) | via simple difusion => packaged into chylomicrons => lymph => heart => rest of cells |