Homework Answers
The first dialysis tubing contains the same concentration of sucrose inside as outside; hence, it is isotonic and no net flow of water will take place.
The second dialysis tubing contains higher concentration of sucrose inside than outside; hence, it is hypertonic and water will flow inwards into the tubing from the beaker.
The third dialysis tubing contains lower concentration of sucrose inside than outside; hence, it is hypotonic and water will flow outwards from the tubing into the beaker.
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4. The images below represent dialysis tubing suspended in a beaker of diH:0. The black dots...
Is this correct so far ? Furthemore, i need help on the blank ones Name Section...
Is
this correct so far ? Furthemore, i need help on the blank ones
Name Section LABORATORY 5 REVIEW QUESTIONS Time 1. Define the following terms: a hypotonie - having lower osmotic pressure in Solution b. isotonic - nouing same osmonic pressure in Solution c. hypertonic - having higher osmon1C Pressure than a particular fluid 2 The diagram below shows three beakers labeled A, B and C which contain water, 1% sucrose and 10% sucrose, respectively. Label cach beaker with...
please I really need help! Refer to "image beaker A” doc to answer questions 1 -...
please I really need help!
Refer to "image beaker A” doc to answer questions 1 - 4: beaker dialysis tubing contains 25% salt solution 5% salt solution outside the tubing The pores in the tubing are ldly "8a6 to pass through: .. O .. white molecules 1) Does a concentration gradient exist in beaker A? 2) Is the solute concentration outside the tubing hypertonic, isotonic, or hypotonic relative to the solute concentration inside the tubing? 3) Will solute move into...
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...
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...
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...
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...
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase
If a potato core is allowed to dehydrate by sitting in open air, would the water potential of the potato cells decrease or increase? i think it decreases but i'm not sure. and if a plant cell has a lower water potential than its surroundings and if pressure=0, is the cell hypertonic(in terms of solute concentration) or hypotonic to its environment? will the cell gain or lose water? any ideas...?http://en.wikipedia.org/wiki/Water_potentialanalysis queswhat is water potential?Osmosis Lab /27819 Name: ________________________________ Date: ___________...
. For each of the 3 situations below, use an arrow to indicate the net movement...
. For each of the 3 situations below, use an arrow to indicate the net movement of water into or out of the cell through the semipermeable plasma membrane (i.e. osmosis). (Assume that the sugar molecules cannot pass through the plasma membrane in each case.) 1% sugar (inside a circule) 3% sugar (inside a circule) 1% sugar (inside a circule) 5% sugar 1% sugar 1% sugar 3. In each of the drawings above, indicate if the inside of the cell...
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...
Is
this correct so far ? Furthemore, i need help on the blank ones
Name Section LABORATORY 5 REVIEW QUESTIONS Time 1. Define the following terms: a hypotonie - having lower osmotic pressure in Solution b. isotonic - nouing same osmonic pressure in Solution c. hypertonic - having higher osmon1C Pressure than a particular fluid 2 The diagram below shows three beakers labeled A, B and C which contain water, 1% sucrose and 10% sucrose, respectively. Label cach beaker with...
please I really need help!
Refer to "image beaker A” doc to answer questions 1 - 4: beaker dialysis tubing contains 25% salt solution 5% salt solution outside the tubing The pores in the tubing are ldly "8a6 to pass through: .. O .. white molecules 1) Does a concentration gradient exist in beaker A? 2) Is the solute concentration outside the tubing hypertonic, isotonic, or hypotonic relative to the solute concentration inside the tubing? 3) Will solute move into...
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...
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...
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...
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...
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...
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