00001 biochem notes

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Author:
mikepl103
ID:
288537
Filename:
00001 biochem notes
Updated:
2014-11-14 12:52:12
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00001 biochem notes
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2014,biology,biochem
Description:
00001 biochem notes
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  1. what enzyme acts on starch in the mouth?
    β amylase
  2. starch is converted in the mouth to ____
    maltose
  3. how does α-amylase cleave starch?
    α-amylase attacks randomly in starch and it doesn't always yield maltose
  4. what happens to β amylase in the stomach?
    denatured
  5. does all the starch get digested in the mouth?
    no
  6. carbohydrates get further broken down in the ___ _____ by _ _____ and ______
    small intestine, α-amylase, maltase
  7. explain how protein gets broken down in the stomach.
    pepsinogen, the zymogen of pepsin, is converted into pepsin and it cleaves proteins into smaller polypeptides
  8. α-amylase is found where?
    in the pancreas
  9. true or false? the body does not store nucleotides.
    true, nucleotides are used immediately
  10. true or false? amino acids are stored in the body.
    false, amino acids are used immediately and are not stored
  11. triglycerides are converted by ______ into glycerol and three fatty acid chains
    lypase
  12. what is the function of secretin?
    it increases bicarbonate production and release from the pancreas
  13. insulin is produced by what cells in the pancreas?
    β cells
  14. glucagon is produced by which cells in the pancreas?
    α cells
  15. ketones are produced where?
    the liver
  16. what is gluconeogenesis?
    the generation of glucose from non-carbohydrate sources
  17. what are ketones used for?
    ketones spare glucose for the brain.
  18. can the brain use ketones for energy?
    yes
  19. how much ATP is produced during chemiosmosis?
    34
  20. how much net ATP is produced from glycolysis and Kreb's cycle?
    4
  21. what is the total amount of ATP that is produced per glucose molecule?
    36-38

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