Homework Answers
The solvent molecules flow from the solution of lower
concentration to the solution of higher concentration. The flow
continues till the concentration of two solutions becomes
equal.
Hence, water will flow from 10% glucose solution to 20% glucose
solution. In other words, water will flow from beaker to dialysis
bag. Hence, the dialysis bag will gain mass after 1 hour in the
beaker.
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A dialysis bag containing a 20% glucose solution is placed in a beaker containing 10% glucose...
If you placed a dialysis bag containing NaCl solution, starch solution and glucose solution in a...
If you placed a dialysis bag containing NaCl solution, starch solution and glucose solution in a beaker of water and left it for 30 minutes before testing the water in the beaker for Cr, glucose and starch what results would you expect? Explain your answer TTTF Paragraph v Arial 3(12pt) ET %DOQ 25" fx Mashups BIMMLESS T' T.
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was...
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
6. Dialysis bags containing a 0.5% sucrose solution are placed in beakers containing the sucrose solutions...
6. Dialysis bags containing a 0.5% sucrose solution are placed in beakers containing the sucrose solutions indicated below. Dialysis bags are NOT permeable to sucrose. -0.5% -0.5% sucrose 0.5% sucrose sucrose -Pure water -0.5% sucrose 1.5% sucrose Chades MN, LLC Indicate the letter of the beaker (A, B, or C) in which the following events or situations occur. a. The dialysis bag remains the same size. b. The dialysis bag shrinks. C. Water moves from the beaker into the dialysis...
A dialysis bag containing 2M fructose is placed in the solutionsbelow. In each case, give the...
A dialysis bag containing 2M fructose is placed in the solutionsbelow. In each case, give the direction in which the water flows. “in” or “out” A.__ 0.50 M magnesium chloride B. _____ 0.7 M magnesium chloride C._ 4 M magnesium chloride
yellow, green or red, the test is positive. The color of the solution depends on the...
yellow, green or red, the test is positive. The color of the solution depends on the concentration of 3. Observe the color of your negative and positive controls. Note which one has a red color. 4 After the dialysis of the NaCi-elucose-red dye solution has progressed for an hour, test the water outside the dialysis bag (your experimental data) for the presence of Ci and glucose same way you did for your controls in steps 1 and 2. Observe if...
Experiment 2: Diffusion Concentration Gradients and Membrane Permeability Data Tables Table 2: Indicator Reagent Data Indicator...
Experiment 2: Diffusion Concentration Gradients and Membrane
Permeability
Data Tables
Table 2: Indicator Reagent Data
Indicator
Starch Positive
Starch Negative
Glucose Positive
Glucose Negative
Glucose Test Strip
n/a
n/a
green
yellow
IKI Solution
dark blue
light brown
n/a
n/a
Table 3: Diffusion of Starch and Glucose Over
Time
Indicator
Dialysis Bag After 60 Minutes
Beaker Water After 60 Minutes
Glucose Test Strip
yellow
green ( if all glucose passed to the beaker from the bag)
IKI
from incolore changed to...
Short answer questions: please answer in the space provided (5 points each) Dialysis tubing can be...
Short answer questions: please answer in the space provided (5 points each) Dialysis tubing can be used to make bags that model a cell but not water. Four meablemembrane. These membranes are impermeable to sucrose were filled with the following solute concentrations: Bag A-10 ml of 1% sucrose Bag B-10 ml of 10% sucrose Bag C-10 ml of 25% sucrose Bag D-10 ml of 50% sucrose Each bag was weighed before placing them in a beaker: Bags A and C...
permeable to the dialysis "membrane." e olute for today's lab is sucrose, which is not Osmosis...
permeable to the dialysis "membrane." e olute for today's lab is sucrose, which is not Osmosis Procedure 1. Fill four beakers with the following Beaker A: 200 ml of water Beaker B: 200 ml of water Beaker C: 200 ml of 30% sucrose solution Beaker D: 200 ml of water 2. Fill four dialysis bags with the following: Bag A: 10 ml of water Bag B: 10 ml of 30% sucrose Bag C: 10 ml of water Bag D: 10...
Question 10 2 pts If you fill up a cellulose bag with a solution of sucrose...
Question 10 2 pts If you fill up a cellulose bag with a solution of sucrose and table salt; then immerse the cellulose bag into a beaker filled with iodine diluted in water. After 1 hour, you observe the following: the solution in the beaker has become black; the solution inside the cellulose bag is also black. What is your conclusion? lodine turned black because of the presence of proteins Starch leaked out of the bag and iodine diffused into...
1. Describe the changes in your potato sample when placed in distilled water. Based on these...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
If you placed a dialysis bag containing NaCl solution, starch solution and glucose solution in a beaker of water and left it for 30 minutes before testing the water in the beaker for Cr, glucose and starch what results would you expect? Explain your answer TTTF Paragraph v Arial 3(12pt) ET %DOQ 25" fx Mashups BIMMLESS T' T.
CRITICAL THINKING QUESTIONS 1. A pre-weighed dialysis bag which contained a solution of 10% glucose was placed in a beaker containing a solution of 20% glucose. After one hour, the bag was weighed again a. Calculate the % mass change of this dialysis bag from the following information: • Mass of bag before experiment: 15.39 • Mass of bag after experiment: 12.79 b. Determine the tonicity of the beaker when it is compared to the dialysis bag: 2. facell had...
6. Dialysis bags containing a 0.5% sucrose solution are placed in beakers containing the sucrose solutions indicated below. Dialysis bags are NOT permeable to sucrose. -0.5% -0.5% sucrose 0.5% sucrose sucrose -Pure water -0.5% sucrose 1.5% sucrose Chades MN, LLC Indicate the letter of the beaker (A, B, or C) in which the following events or situations occur. a. The dialysis bag remains the same size. b. The dialysis bag shrinks. C. Water moves from the beaker into the dialysis...
yellow, green or red, the test is positive. The color of the solution depends on the concentration of 3. Observe the color of your negative and positive controls. Note which one has a red color. 4 After the dialysis of the NaCi-elucose-red dye solution has progressed for an hour, test the water outside the dialysis bag (your experimental data) for the presence of Ci and glucose same way you did for your controls in steps 1 and 2. Observe if...
Experiment 2: Diffusion Concentration Gradients and Membrane
Permeability
Data Tables
Table 2: Indicator Reagent Data
Indicator
Starch Positive
Starch Negative
Glucose Positive
Glucose Negative
Glucose Test Strip
n/a
n/a
green
yellow
IKI Solution
dark blue
light brown
n/a
n/a
Table 3: Diffusion of Starch and Glucose Over
Time
Indicator
Dialysis Bag After 60 Minutes
Beaker Water After 60 Minutes
Glucose Test Strip
yellow
green ( if all glucose passed to the beaker from the bag)
IKI
from incolore changed to...
Short answer questions: please answer in the space provided (5 points each) Dialysis tubing can be used to make bags that model a cell but not water. Four meablemembrane. These membranes are impermeable to sucrose were filled with the following solute concentrations: Bag A-10 ml of 1% sucrose Bag B-10 ml of 10% sucrose Bag C-10 ml of 25% sucrose Bag D-10 ml of 50% sucrose Each bag was weighed before placing them in a beaker: Bags A and C...
permeable to the dialysis "membrane." e olute for today's lab is sucrose, which is not Osmosis Procedure 1. Fill four beakers with the following Beaker A: 200 ml of water Beaker B: 200 ml of water Beaker C: 200 ml of 30% sucrose solution Beaker D: 200 ml of water 2. Fill four dialysis bags with the following: Bag A: 10 ml of water Bag B: 10 ml of 30% sucrose Bag C: 10 ml of water Bag D: 10...
Question 10 2 pts If you fill up a cellulose bag with a solution of sucrose and table salt; then immerse the cellulose bag into a beaker filled with iodine diluted in water. After 1 hour, you observe the following: the solution in the beaker has become black; the solution inside the cellulose bag is also black. What is your conclusion? lodine turned black because of the presence of proteins Starch leaked out of the bag and iodine diffused into...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
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