to pass through it, but not allow sucrose molecules to pass through it? What do• Briefly consider how this is possible - how can a membrane allow water moleculesIn the simulation, you will measure the mass of the tubes before placement into thesolutions, and then measure their mass again after 24 hours in the solutions. These twoeable) to sugar (sucrose)..you know about the chemical structures - and relative sizes - of water andsucrose?measurements will allow you to calculate the change in weight.As mentioned above, the dialysis tubing is permeable to water and impermeable tosucrose. Keeping this in mind, what is your interpretation of the change in uheweight of the dialysis tubes after 24 hours in the solutions? In other words - what ismoving into or out of the dialysis tubes to cause the change in weight?Based on your answer to the above question, is this simulated lab a demonstrationof diffusion or osmosis?Record the data you get from vour simulation's experiment in the following table:1)Concentration Concentration ofof sugar in thedialysis tube3)Dialysistube startingmass (g)4)Dialysis tubeendingmass (g)5)Change intube mass2)Samplesugar in thebeaker solution(g)(column 4-3)control17,5A17.660.07o %.10 %10%10%10%A\o. 40 l 1.6512.10/0.8610.57 |-0.1t18-05 15.60 -2.450%.8-15ら7.|1.24C10%15%10.71EWhen you are finished, make a graph of your data to show the relationshipbetween the concentration of sugar in solution and change in mass.Reflection Questions• What hypothesis is being tested by this "experiment"/demonstration?What is the independent variable?• What is the dependent variable?Are these variables qualitative or quantitative?4 In which sample[s] was the beaker solution initially hypertonic to the solution in uhedialysis tubing?In which sample[s] was the beaker solution initially hypotonic to the solution n diedialysis tubing?in which sample[s] was the beaker solution initially isotonic to the solution in thedialysis tubing?

Since you have asked multiple questions, we will solve the first question for you. If you want any…

Briefly consider how this is possible - how can a membrane allow water molecules to pass through it, but not allow sucrose molecules to pass through it? What do you khow about the chemical structures - and relative sizes - of water and sucrose?

Briefly consider how this is possible - how can a membrane allow water molecules to pass through it, but not allow sucrose molecules to pass through it? What do you khow about the chemical structures - and relative sizes - of water and sucrose?

Understanding Nutrition (MindTap Course List)

15th Edition

ISBN:9781337392693

Author:Eleanor Noss Whitney, Sharon Rady Rolfes

Publisher:Eleanor Noss Whitney, Sharon Rady Rolfes

Chapter10: The Water-soluble Vitamins: B Vitamins And Vitamin C

Section10.2: The B Vitamins

Problem 10.1TI

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

to pass through it, but not allow sucrose molecules to pass through it? What do
• Briefly consider how this is possible - how can a membrane allow water molecules
In the simulation, you will measure the mass of the tubes before placement into the
solutions, and then measure their mass again after 24 hours in the solutions. These two
eable) to sugar (sucrose)..
you know about the chemical structures - and relative sizes - of water and
sucrose?
measurements will allow you to calculate the change in weight.
As mentioned above, the dialysis tubing is permeable to water and impermeable to
sucrose. Keeping this in mind, what is your interpretation of the change in uhe
weight of the dialysis tubes after 24 hours in the solutions? In other words - what is
moving into or out of the dialysis tubes to cause the change in weight?
Based on your answer to the above question, is this simulated lab a demonstration
of diffusion or osmosis?
Record the data you get from vour simulation's experiment in the following table:
1)
Concentration Concentration of
of sugar in the
dialysis tube
3)
Dialysis
tube starting
mass (g)
4)
Dialysis tube
ending
mass (g)
5)
Change in
tube mass
2)
Sample
sugar in the
beaker solution
(g)
(column 4-3)
control
17,5A
17.66
0.07
o %.
10 %
10%
10%
10%
A
\o. 40 l 1.65
12.10/0.86
10.57 |-0.1t
18-05 15.60 -2.45
0%.
8-15
ら7.
|1.24
C
10%
15%
10.71
E
When you are finished, make a graph of your data to show the relationship
between the concentration of sugar in solution and change in mass.
Reflection Questions
• What hypothesis is being tested by this "experiment"/demonstration?
What is the independent variable?
• What is the dependent variable?
Are these variables qualitative or quantitative?
4

In which sample[s] was the beaker solution initially hypertonic to the solution in uhe
dialysis tubing?
In which sample[s] was the beaker solution initially hypotonic to the solution n die
dialysis tubing?
in which sample[s] was the beaker solution initially isotonic to the solution in the
dialysis tubing?

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