Quiz 4

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  1. Troponin C when bound to Ca++ loosens its "grip" on Tropomyosin that in turns exposes binding sites on the actin filament.
    TRUE
  2. A side effect of a beta-blocker can be weight gain.
    TRUE
  3. COMT recycles acetylchloline
    FALSE
  4. Synaptobrevin is a recognition protein found on vesicular membrane.
    TRUE
  5. Presynaptic membranes will have vgc for Ca++ and a recognition protein like syntaxin
    TRUE
  6. The effect of atropine on the heart is to slow it down or negative chronotropic effect.
    FALSE
  7. Creatine is needed the actin-myosin site for contraction and relaxation.
    FALSE
  8. Creatinine is a breakdown product when ATP produced in the electron transport chain.
    FALSE
  9. Lack of Dystrophin is found in Myesthenia Gravis
    FALSE
  10. EPSPs and IPSPs summate to produce an overall post synaptic response.
    TRUE
  11. EPSP are produced by activation of Na+ lgc and IPSPs are produced by activating K+ or Cl- lgc.
    TRUE
  12. Neostigmine is an agent used as cholinesterase inhibitor.
    TRUE
  13. Paralysis of voluntary muscle can be caused by a nicotinic cholinergic blocker
    TRUE
  14. Beta blockers would increase heart rate and contractility
    FALSE
  15. A cholinergic muscarinic blocker would increase heart rate.
    TRUE
  16. there are net 38 ATPs produced from one molecule of Glucose after the 2 ATP used by the cell are deducted from the total ATP production
    TRUE
  17. Amino acids can replace acetyl-SCoA by deamination.
    FALSE
  18. The proton pump is "powered" by the transfer of electrons down the electrons transfer chain.
    TRUE
  19. Chemiosmosis occurs in the Kreb's cycle.
    FALSE
  20. MAOI can be additive in their effects with CNS depressants.
    TRUE
  21. For every myosin "think filament" there are 6 actin "thin filament."
    FALSE
  22. the H zone changes with contraction and relaxation but the A band stays fixed.
    TRUE
  23. There are no myosin heads in the region of the H zone.
    FALSE
Author:
sh3ilamarie
ID:
316072
Card Set:
Quiz 4
Updated:
2016-02-18 08:03:59
Tags:
physiology
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Description:
quiz 4. true or false.
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