Lecture test one

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Author:
nando54321
ID:
216934
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Lecture test one
Updated:
2013-05-01 01:45:57
Tags:
bio
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Description:
enzymes
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  1. the term saccharide is equivalent to what?
    sugars!
  2. the term glyceride is equivalent to what?
    fats and oils
  3. amylase acts on what?
    carbs-starches
  4. lipase acts on what?
    triglycerides (fats and oils)
  5. exocrine glands secrete into what?
    lumen
  6. secretion of mucous, parietal and chief cells form what?
    gastric juice
  7. what two products do parietal cells produce?
    • 1-intrinsic factor
    • 2-CHL
  8. pepsin enzyme break-down proteins into what?
    peptides
  9. pancreatic islets secrete which hormones?
    glucagon, insulin, somatostatin and pancreatic peptides
  10. surface mucous cells,
    mucous neck cells,
    parietal cells,
    chief cells and
    G cells
    all 5 are part of which mucosa layer?
    stomach
  11. absorptive cells
    goblet cells
    enteroendocrine cells
    paneth cells
    all 4 are all part of which mucosa layer?
    small intestine
  12. parietal cells found in the stomach secrete what?
    HCL and intrinsic factors
  13. why do we need intrinsic factors?
    to absorb vitamin B12
  14. why do we need HCL?
    1-to kill microbes

    2-denature proteins

    3-convert pepsinogen into pepsin
  15. chief cells found in stomach secrete what?
    pepsinogen and gastric lipase
  16. why do we need pepsinogen?
    to break down proteins into peptides
  17. why do we need gastric lipase?
    to break down triglycerides into fatty acids and monoglycerides
  18. G-Cells of the stomach secrete what?
    the hormone gastrin
  19. what happens in the stomach when gastrin is released?
    1-parietal cells secrete HCL

    2-chief cells secrete pepsinogen

    3-esophageal sphincter contracts

    4-motility of stomach increases

    5-pyloric sphincter relaxes
  20. true or false
    pancreatic amylase, trypsin, chymotrypsin, elastase, carboxypeptidase, pancreatic lipase, nuclease, ribonuclease and deoxyribonuclease are all pancreatic enzyme?
    true
  21. pancreatic amylase converts starches and carbs into what?
    1-disaccharides

    2-trisaccharides

    3-alpha dextrin
  22. trypsin, chymotrypsin and elastase converts proteins into what?
    peptides

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