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QUESTION 1How many subunits does the sodium potassium ATPase pump have ? Ma.1b.2c.3d.4QUESTION 2When the sodium potassium ATPase pump is turned on, how many sodiums are pumped out of the cell? a.1b.2c.3d.4 QUESTION 3The sodium potassium ATPase pump pumps how many potassiums into the cell?a.1b.2c.3d.4QUESTION 4WHICH OF THE FOLLOWING HORMONES IS KNOWN TO INCREASE THE ACTIVITY OF THE SODIUM POTASSIUM ATPASE PUMP? a.CORTISOLb.ALDOSTERONE c.ESTROGENd.PTH QUESTION 5WHICH OF THE FOLLOWING DRUGS INHIBITS THE SODIUM POTASSIUM ATPASE PUMP? a.DIGOXINb.HYDROCORTISONEc.METFORMIN d.NONE OF THE ABOVE QUESTION 6DIGOXIN IS A a.POSITIVE IONOTROPIC AGENT b.NEGATIVE INOTROPIC AGENT c.A POSITIVE CHRONOTROPIC AGENT d.NONE OF THE ABOVE QUESTION 7THE SODIUM/POTASSIUM PUMP CONTAINS BUILT IN a.GTPase ACTIVITYb.ATPase activity c.protein kinase activity
d.none of the above 10 points QUESTION 8Phosphorylation of the pump leads to which of the following? a.increased affinity for sodium b.decreased affinity for sodium c.increased affinity for potassium d.none of the above QUESTION 9DEPHOSPHORYLATION OF THE PUMP a.RESULTS IN A CONFORMATIONAL CHANGE THAT DELIVERS POTASSSIUM OUT INTO THE ECF b.RESULTS IN A CONFORMATIONAL CHANGE THAT DELIVERS POTASSSIUM INTO THE ICF c.RESULTS IN A CONFORMATIONAL CHANGE THAT DELIVERS POTASSSIUM OUT OF THE CELL dNONE OF THE ABOVE QUESTION 10INCREASING THE ACTIVITY OF THE SODIUM POTASSIUM ATPASE CAN POTENTIALLY HAVE WHAT EFFECT ON THE MEMBRANE POTENTIAL? a.HYPERPOLARIZATION b.DEPOLARIZATION c.SIGNIFICANT DEPOLARIZATION
d.NONE OF THE ABOVE QUESTION 11WHEN A CELL IS EXPOSED TO LOW OXYGEN, THE ACTIVITY OF THE SODIUM /POTASSIUM ATPASE PUMPa.INCREASESb.DECREASES c.INITIALLY INCREASES , FOLLOWED BY A DECREASE. d.NONE OF THE ABOVE
In a study of 600 people, 345 have Rh+ and 255 were Rh-. Assuming Rh+ is dominant allele D and Rh- is recessive d, calculate the expected number of Rh+ people who are heterozygotes.
Explain the pathway of the conduction from the atria to the ventricles and correlate this conduction with the ECG waves.
question 1.what is the name for the fibrous sac that encloses the heart?question 2.name the lymphatic organ that is
In light of what you now know about cellular respiration, explain the mechanism of action of poisons such as carbon monoxide, arsenic and 2,4 dinitriphenol (DNP), in that order.
why materials move from high to low concentration. Isn't this just a waste of energy.
A forty-five year old woman goes to the primary care physician with abdmonal pain, nausea, and non - bloody diarrhea. A gram stain of a stool sample presents with gram negative rods.
Describe what harmful levels of this pollutant would be for humans, how we would regulate and test for the levels of this pollutant, and describe 2 additional routes of possible exposures for your pollutant.
Genes A, B, and C are linked on a chromosome and found in the order A-B-C. Genes A and B recombine with a frequency of 8%, and genes B and Crecombine at a frequency of 24%.
Histone hyperacetylation of certain genes is associated with cancer. What is the effect of histone acetylation on gene expression, and what is the normal function of the genes affected?
Compute the number of "net ATP" molecules obtained the anaerobic conversion of each of the following sugars to lactate.
You are given a stock solution of EDTA at a concentration of 5mM, how would you dilution of EDTA with a final concentration of 5mM in a final volume of 250mL?
Black fur in mice (B) is dominant to brown fur (b). short tails (H) are dominant to long tails (h). what fraction of the offspring of the cross BbHh x BBhh will have black fur and long tails? cross a homozygous dominant snapdragon with a homozygous..
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