hey peeps!!! back to the study again ! really struggling to find clear answers for these questions!!! for physioex 9.0 !!!! not 8.0 !!!
here we go
activity 2:
1) are the solutes moving with or against their concentration gradient in facilitated diffusion?
2) what happened to the rate of facilitated diffusion when the number of carrier proteins was increased?
3) explain why equilibrium was not reached with 10mM glucse and 100 membrane carriers?
4) in the simulation you added Na+CI to test its effect on glucose diffusion. explain why there was no effect?
activity 3:
1)which membrane resulted in the greatest pressure with Na+CI as the solute? why?
2) explain what happens to the osmotic pressure with increasing solute concentration/
3) if the solutes are allowed to diffuse, is osmotic pressure generated?
4) if the solute concentrations are equal, is osmotic pressure generated? why, why not?
activity 4:
1) explain your results with the 20 mwco filter. why weren't any of the solutes present in the filtrate?
2) describe two variables that affected the rate of filtration in your experiments?
3) explain how you can increase the filtration rate through living membrane?
4) judging from the filtration results, indicate which solute has the largest molecular weight?
activity 5:
1) in the initial trial the number of Na+K+ pumps is set to 500, the Na+CI concentration is set to 9.00mM the K+CI concentration is set to 6.00mM and the ATP concentration is set to 1.00mM. explain what happened and why? what would happen if no ATP had been dispensed?
2) why was there no transport when you dispensed only Na+CI even though ATP was present?
3) what happens to the rate of the transport of Na+ and K+ when you increase the number of Na+K+ pumps?
4 explain why the Na+ and K+ transports were unaffected by the addition of glucose?
I would love you a million if someone could help me out
!!! fanks xxx
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