PNB 2265 LAB 7 QUESTIONS WITH 100%
CORRECT ANSWERS | LATEST UPDATE .
possible treatments - Correct Answer -cold ringer's solution (4 degrees c), 0.1 mM DNP, low
sodium
what must be done to the intestinal sac for this experiment - Correct Answer -it must be
inverted
why is there no gradient for the movement of glucose - Correct Answer -the sacs contain the
same glucose concentration as the external incubating solution
what must be in each beaker - Correct Answer -aerator
valid standard curve value - Correct Answer -R2= 0.98
what is x on the graph - Correct Answer -concentration of glucose
what is y on the graph - Correct Answer -absorbance
what would happen if you could only collect 100 microliters of the solution instead of 200
microliters for analysis - Correct Answer -the concentration of glucose would be twice the
true concentration
cold condition results - Correct Answer -glucose concentration would increase compared to
initial, but less than the control value (temp would slow transport but not inhibit it)
DNP condition results - Correct Answer -glucose concentration would not change (DNP
inhibits ATP, so N/K/ATPase pump wouldn't work which is necessary for glucose transport)
low sodium condition results - Correct Answer -glucose concentration would decrease, it may
show an increase but it would be less than the control (low sodium decreases sodium's
concentration gradient, slowing transport but not stopping it)
1
CORRECT ANSWERS | LATEST UPDATE .
possible treatments - Correct Answer -cold ringer's solution (4 degrees c), 0.1 mM DNP, low
sodium
what must be done to the intestinal sac for this experiment - Correct Answer -it must be
inverted
why is there no gradient for the movement of glucose - Correct Answer -the sacs contain the
same glucose concentration as the external incubating solution
what must be in each beaker - Correct Answer -aerator
valid standard curve value - Correct Answer -R2= 0.98
what is x on the graph - Correct Answer -concentration of glucose
what is y on the graph - Correct Answer -absorbance
what would happen if you could only collect 100 microliters of the solution instead of 200
microliters for analysis - Correct Answer -the concentration of glucose would be twice the
true concentration
cold condition results - Correct Answer -glucose concentration would increase compared to
initial, but less than the control value (temp would slow transport but not inhibit it)
DNP condition results - Correct Answer -glucose concentration would not change (DNP
inhibits ATP, so N/K/ATPase pump wouldn't work which is necessary for glucose transport)
low sodium condition results - Correct Answer -glucose concentration would decrease, it may
show an increase but it would be less than the control (low sodium decreases sodium's
concentration gradient, slowing transport but not stopping it)
1
