Homework Answers
A) Using the data shown in the above graph, lines a and b represent change in weight of a dialysis bag that is hypertonic to the solution in the beaker. Water will move from the hypotonic solution into the hypertonic solution. Therefore, the weight of dialysis bag will be increased.
B) Using the data shown in the above graph, line d represents change in weight of a dialysis bag that is hypotonic to the solution in the beaker. Water will move from the hypotonic solution into the hypertonic solution. Therefore, the weight of dialysis bag will be decreased.
C) Using the data shown in the above graph, lines c represents change in weight of a dialysis bag that is isotonic to the solution in the beaker. The weight of dialysis bag will not be changed.
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5. Four dialysis bags (labeled a, b, c, d, and e) filled with solutions of varying...
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...
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...
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...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
Part 3: Data collection Beaker Contents initial mass of cell (g) mass after 20 min (g)...
Part 3: Data collection Beaker Contents initial mass of cell (g) mass after 20 min (g) mass after 40 min (g) Change in Mass (g) Dl water 8:20 8:40 0.150 M NaCl 16.37 3 3:17 834 0.150 M CaCl2 sessa 5.9469 5.9679 0.1129 6.4459 (6.405g 0.03g (6.6089g (6.583g 16-4959 -0.1949 (6.7499 (0.251g 5.9049 - 0.8459 6.597 6.2239 5.8989 -0.609 6:14 8.40 0.15 M Na3PO4 18.21 8:42 0.0.150 M unknown Part 4: Dialysis Tubing Record your observations below as you conduct...
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...
Bodyl. 10AA ASEE T Autocate AD UNTS ABCDe AaBbCcDc Accod AaBb Adobe Afte A No Spacing...
Bodyl. 10AA ASEE T Autocate AD UNTS ABCDe AaBbCcDc Accod AaBb Adobe Afte A No Spacing Heading ing? The Suche lle Name (Type or Print) W Figure 5.4 Mass change (%) Five dialysis bags, constructed from a semipermeable membrane that is impermeable to sucrose, were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6 M sucrose solution. At 10-minute intervals, the bags were massed (weighed) and the percent change in mass...
at the two molecules to the che Choose A TRUE if the statement below applies to...
at the two molecules to the che Choose A TRUE if the statement below applies to these molecules. Choose B. FALSE if the statement below does NOT apply to these molecules These molecules will form hydrogen bonds with water The se molecules are both 5 carbon sugar Both of these molecules are found in DNA Only one of these molecules is found in RNA The molecule on the left is found in DNA 44. 45. 46. This molecule in DNA...
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...
Na' Key Na transport channel Figure A Figure B For the figures above, the inner circle...
Na' Key Na transport channel Figure A Figure B For the figures above, the inner circle represents a cell which is surrounded by a solution. For the purposes of these questions, assume each molecule of Nat 1 M and each molecule of Ca2+ 2M. Assume each molecule of H2O represents 100 mL. Hint: Don't overthink these! I) Figure A: Suppose the cell pictured is at its normal volume and has a semipermeable membrane. Which of the 3 molecules in the...
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...
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...
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...
POST-LAB QUESTIONS / HOMEWORK 1. A student performed the following osmosis experiment, similar to the one you did, using a different combination of substances. Determine his/her results and explain them by answering the questions in the table by filling in the blank boxes. Assume that the dialysis bag is impermeable to sucrose. Set-up 1 Set-up 2 Set-up 3 Set-up 4 Set-up 5 Bags 15 mL in each Tap water Tap water 55% sucrose 21% sucrose solution solution Tap water Beakers...
Part 3: Data collection Beaker Contents initial mass of cell (g) mass after 20 min (g) mass after 40 min (g) Change in Mass (g) Dl water 8:20 8:40 0.150 M NaCl 16.37 3 3:17 834 0.150 M CaCl2 sessa 5.9469 5.9679 0.1129 6.4459 (6.405g 0.03g (6.6089g (6.583g 16-4959 -0.1949 (6.7499 (0.251g 5.9049 - 0.8459 6.597 6.2239 5.8989 -0.609 6:14 8.40 0.15 M Na3PO4 18.21 8:42 0.0.150 M unknown Part 4: Dialysis Tubing Record your observations below as you conduct...
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...
Bodyl. 10AA ASEE T Autocate AD UNTS ABCDe AaBbCcDc Accod AaBb Adobe Afte A No Spacing Heading ing? The Suche lle Name (Type or Print) W Figure 5.4 Mass change (%) Five dialysis bags, constructed from a semipermeable membrane that is impermeable to sucrose, were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6 M sucrose solution. At 10-minute intervals, the bags were massed (weighed) and the percent change in mass...
at the two molecules to the che Choose A TRUE if the statement below applies to these molecules. Choose B. FALSE if the statement below does NOT apply to these molecules These molecules will form hydrogen bonds with water The se molecules are both 5 carbon sugar Both of these molecules are found in DNA Only one of these molecules is found in RNA The molecule on the left is found in DNA 44. 45. 46. This molecule in DNA...
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...
Na' Key Na transport channel Figure A Figure B For the figures above, the inner circle represents a cell which is surrounded by a solution. For the purposes of these questions, assume each molecule of Nat 1 M and each molecule of Ca2+ 2M. Assume each molecule of H2O represents 100 mL. Hint: Don't overthink these! I) Figure A: Suppose the cell pictured is at its normal volume and has a semipermeable membrane. Which of the 3 molecules in the...
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