BMS13-1057 - Digestive and absorptive processes in the intestine

After salivary amylase:
-pancreatic amylase cleaves straight chains only to produce short ..., ..., and ...
- further digestion to monosaccharides by ....

Detail how the following are absorbed:
1. Free amino acids
2. Di/Tri peptides
3. Larger peptides

Digestive functions are localised where...

How are glucose and galactose absorbed? What kind of transport is involved?

How does H20 get reabsorbed in the colon?
What stimulates H20 and Na reabsorption?
What is the role of microflora in the colon?

How does malabsorption lead to osmotic diarrhoea?

How is fructose absorbed? What type of transport is involved?

What are carboxypeptidase and aminopeptidase and what do they do?

What are two other causes of diarrhoea (excluding osmotic)?

What are some causes of malabsorption?

What are the 3 places carbohydrate digestion occurs? What are their optimal pHs?

What are the main components of the small intestine villus?

What are the steps of fat absorption?

What are the steps of fat digestion?

Fat ... happens then at the epithelial brush border fat... happens

What cell junctions are there in the small intestine?

What does the chief cell and parietal cell secrete?

What is the role of pepsinogen and HCl in protein digestion in the stomach?

What gradient is maintained inside a small intestine enterocyte? How is this maintained?

What is chyme? Where is it released?
What other factors are required for the digestion of food?

What is required for fat digestion/absorption?

What is the role of intrinsic factor from parietal cell?

What is the second stage of protein digestion?
1. In the duodenum, enzyme ... on brush border of enterocytes activate ...-->...
2. Trypsin activates... of the pancreas
3. ..., ... and ... cleave peptide bonds to produce short peptides
4. ... remove amino acids from terminals of peptides

What is the unstirred layer of the small intestine?

Where are bile salts reabsorbed?
How do they reach to liver and be reused?
How much bile salt is lost?