biochemistry final exam

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biochemistry final exam
2014-05-13 23:47:33
biochemistry sfsu
sfsu exam
sfsu biochemistry final exam
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  1. oxidative phosphorylation occurs in the mito
  2. the matrix conc is more basic than the intermembrane space
    when much more basic conc, the slower the movement of proton
  3. the connection between the ETC and the energy required to drive ATP synthesis is the
    chemiostatic theory
  4. since it requires E to pump H+ out of the matrix, energy is given off when they are pumped back in
  5. The E for the protons that are being given off to be pumped back in is used for
    ATP synthase (complex 5) phosphorylation of ATP
  6. 2 sources of fatty acids for oxidation of fatty acids
    • dietary FA
    • stored FA
  7. the intestine forms what after we eat something containing fat
  8. 5 components of chylomicrons
    • triacylglycerol
    • cholesterol esters
    • phospholipids
    • apoprotein
    • cholesterol
  9. lipoprotein lipase function
    enzyme that cleaves fatty acids leaving only a backbone
  10. VLDL func
    carry cholesterol from the liver to organs and tissues in the body
  11. chylomicrons func
    They transport dietary lipids from the intestines to other locations in the body
  12. HDL func
    is to transport cholesterol from the cells and tissue back to the liver
  13. LDL func
    cholesterol transporter that carries cholesterol from the liver to the body cells
  14. albumin func
    transporting fats and fatty acids to muscle tissue
  15. lipids are functionally diverse biological molecules
  16. 2 forms of passive lipids
    • high E storage molecules (TAG)
    • insulation (brown fat)
  17. 2 forms of active lipids
    • biological mem (cholesterol)
    • modulation of signal transduction (prostaglandins)
  18. FA are simple lipids
  19. FA components 2
    • carboxylic acid
    • hydrocarbon tail
  20. FA have an even number of C usually between 16-18
  21. Lauric acid
  22. FA 3 forms
    • unsaturated
    • saturated
    • polyunsaturated
  23. double bonds of FA are normally cis
  24. polyunsaturated FA can have up to 5 double bonds but they are not congugated
  25. Trans  Fay  Acids  can  be  formed  by  hydrogenaon  of  plant  oils  and  found  in  meats.
  26. 18:2  Linoleic  Acid                9,12-‐Octadecadienoic  Acid  
    18:3  Linolenic  Acid                            9,12,15-‐Octadecadienoic  Acid
  27. cholesterol composition 3
    • hydrocarbon tail
    • polar region
    • sterol nucleus
  28. cholesterol is important to a biological membrane
  29. The  “growing”  acyl  chain  is  carried  by  an  acyl  protein  which  is  part  of    fay  synthase
  30. This  irreversible  reacon  is  the  commied  step  of  fay  acid  synthesis                        and  it  is  catalyzed  by  the  enzyme  acetyl  CoA  carboxylase  (ACC)