Chapter 11 Cell Biology

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Author:
bdgauthia
ID:
299112
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Chapter 11 Cell Biology
Updated:
2015-03-26 09:05:39
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Cell biology
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Description:
cell biology for chapter 11
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  1. Rapid long distance communication needs to be boosted by?
    action potential
  2. The hydrophobic portion, the tails of the lipid bi-layer face each other because
    it is energetically favorably
  3. ______ is a barrier with nearly 50% proteins.
    plasma membrane
  4. Some or all of the following can easily pass through the plasma membrane:
    all of the above
  5. Voltage gated Ca2+ channels convert electrical signals into _____ at the nerve terminals:
    chemical signals
  6. Cell surface receptors can be:
    all of the above
  7. Neurotransmitter is released following the entry of ______ into the nerve terminals.
    Ca2+
  8. G-protein subunits will be activated following:
    neurotransmitter release
  9. All of the following statements on the cell cortex is true excepts:
    provides mechanical shape....
  10. Some or all of the following are intracellular signaling molecule (s)
  11. Coupled transporters exploit the ____ to take up nutrients:
    gradients
  12. Among the following gases, _____ acts as an intracellular second messenger:
    nitric oxide
  13. Intracellular action of a chemical/ligand depends on the:
  14. The lipid bilayer is a two-dimensional fluid because of the:
  15. Each cell responds to a limited set of signals, depending on its:
  16. Cyclic AMP-mediated action of adrenaline can lead to:
  17. Synaptic vesicles are present at the:
  18. Intracellular signaling can be
  19. Level of one of the following ions is increased by inositol phospholipid pathway:
  20. Membrane potential is regulated by:
  21. Increased intracellular concentration of CT will lead to:
  22. Receptor tyrosine kinases (RTK's) get phosphorylated on this amino acid
  23. All RTK's activate:
  24. The cell membrane has transmembrane proteins; the amino acids that make these transmembran proteins are:
  25. ____ play a predominant role in the activation of action potentials.
    voltage gated Nachannels
  26. Slow response to a signal by a cell is due to the :
    involvement of the nucleus
  27. The inositol phospholipid pathway triggers a rise in intracellular:
  28. Some responses to adrenaline are mediated by:
  29. Active transport is the movement of a substance against ______
  30. Integral proteins of the lipid bilayer traverse across the membrane. T/F
    true
  31. Small uncharged polar molecules will cross the plasma membrane. T/F
    true
  32. Cytoplasmic domain of the receptor tyrosine kinase binds with a G protein. T/F
  33. All atoms in the hydrophobid tail of the phospholipid are nonpolar. T/F
  34. Inactive G proteins are coupled with GTP. T/F
    true
  35. The same chemical/neurotransmitter can cause multiple actions such as secretions, excitation, and inhibition in different organs. T/F
    True
  36. The cell membrane proteins are located randomly. T/F
    True
  37. Receptors for lipid soluble ligands are located extracellularly. T/F
  38. Ion channel coupled receptors need signal/ligand molecule to open the ion channels. T/F
    true
  39. Concentration of Na+ outside and inside the cell is 145 and 10 mM respectively. T/F
    false

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