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1) Emma has multiple sclerosis. If you could view her nervoussystem you would find a lack of neurotransmittersin some neurons areas where the myelin sheathhas degenerated areas where the dendrites areseverely damaged a reduction in the number ofchloride ions in her peripheral nervous system2) Leonard's mother became dehydrated during a recent illness, andthe levels of sodium in her body were significantly reduced. Ifenough sodium was lost you might expect that her nervous system wouldbecome highly activated and action potentials would begenerated continuously fewer action potentials wouldoccur in her nervous system more neurotransmitters wouldbe produced in her terminal buttons glial cells would start todegenerate and die3) If inhibitory postsynaptic potentials did not exist it would be "easier" for aneuron to fire its action potential it would be "harder" for aneuron to fire its action potential there would not be any effecton the ease at which a neuron fires its action potential it would be impossible forneural impulses to travel across the synapse4) When nicotine acts on the brain it acts like acetylcholine andbinds to ACh receptor sites causing postsynaptic potentials.Nicotine is an antagonist an agonist a monoamine a reuptake agent5) Monoamines have been associated with all of the following except aggressive behavior pain reduction schizophrenia depression6) A good analogy for the way in which a neurotransmitter binds toreceptor sites is the opening and closing of awindow a key fitting in the lock ofa door the lowering of adrawbridge the pulling of the trigger ofa gun
What genetic basis of erminette pattern is suggested? How will you test your hypothesis. In brief compare the progress of an infectious disease through a well-immunized popula
Here, you are asked to do an energetic yield analysis for the complete oxidation of Palmitic Acid as an example of a saturated fatty acid. As in the previous problem, assum
Three genes on the same chromosome have the following rates of recombination: · T - K = 10.5 percent · A - K =12.5 percent · A - T = 2 percent What is the correct order of t
You have been asked to study two recently discovered fish species, both found in waters off a small island. The two species are very similar in general structure, but there ar
Explain at least one historical extinction with parallels to the extinction threats facing the bog turtle. When allosteric effector X binds to enzyme #1, enzyme stops working.
Based on what you know about cellulose, what do you predict are the major advantage and disadvantage of using cellulose-rich plant material as biofuel? (Hint: Focus on cellu
Tau is a protein that participates in different processes: it is a microtubule associated protein, it protects cells from apoptosis induced by TNF, it is required for the am
How do changes in ventilation rate, cardiac output, and dead space ventilation affect alveolar PO2 and pulmonary venous PO2? Do these three factors have an ad
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