Before you start this you should carefully read through the dialysis tubing lab procedure posted on Google Classroom. This assignment will be graded on correctness and you should complete it independently (not with anyone else). If you have questions please let me know!
Question 1
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
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Question 10
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Question 11
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Question 12
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Question 13
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Question 14
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Question 15
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Question 16
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Which of the following is true about dialysis tubing?
It is plastic
It will be used as an artificial cell
It has large holes in it and will allow all molecules to move in and out of it
It will prevent small polar molecules from leaving or entering the cell because they are polar
It has small holes in it that will prevent smaller molecules from moving through it
Which of the following is true about starch?
It is made up of a bunch of glucoses bound together
It is a relatively large molecule (in comparison to glucose)
It is a relatively small molecule (in comparison to glucose)
When it is with KI the solution will turn dark purple
When it is with KI the solution will turn yellow
When it is heated and in the presence of Benedicts solution it will turn red/orange
When it is heated and in the presence of Benedicts solution it will turn blue
Which of the following is true about glucose?
It is made up of a bunch of glucoses bound together
It is a relatively large molecule (in comparison to starch)
It is a relatively small molecule (in comparison to starch)
When it is with KI the solution will turn dark purple
when it is with KI the solution will turn yellow
When it is heated and in the presence of Benedicts solution it will turn red/orange
When it is heated and in the presence of Benedicts solution it will turn blue
Which of the following is true about KI?
It is a very small molecule
It turns yellow in the presence of starch
It turns dark purple in the presence of starch
It is a very large molecule
It turns dark purple in the presence of glucose
Which of the following is true about Benedict solution?
It turns red/orange when heated in the presence of starch
It turns dark purple when heated in the presence of starch
It turns red/orange when heated in the presence of glucose
It turns dark purple when heated in the presence of glucose
How high should you fill the beaker with water when you start the lab?
All the way to the top
Just put a few droppers full of water inside of the beaker
3/4 of the way to the top
How much KI should you add to the beaker?
20 drops
20 droppers full
A tablespoon
3/4 of the way in the beaker
What should you add to the test tube without tape?
2 droppers full of Benedict's solution
3 droppers full of the KI solution from the beaker
3 drops of the KI solution from the beaker
2 drops of Benedict's solution
After you tie one end of the dialysis tubing how much should you fill it with starch/glucose solution using the dropper?
All of the way to the top
Just one dropper full
5 droppers full
5 drops
If there is a lot of extra tubing after you tie it off, what should you do?
Leave it
Cut it off
Squeeze the "cell" until it bursts
Before you put the dialysis tubing "cell" inside of your beaker what should you do?
Throw the cell away
Weigh the cell and write down the mass
Write down the color of the inside of the "cell"
Write the color of the outside of the "cell"
Which of the following is inside the dialysis tubing "cell" to start?
Starch
Water
KI
Glucose
Which of the following is outside of the dialysis tubing "cell" to start (in the beaker)?
Starch
Water
KI
Glucose
Should you stay in the lab space while you are waiting for the experiment to run?
No - move to the classroom area
Yes - just stay in the back lab space
Once the experiment has run what should you do?
Write down the color inside of the cell
Write down the color outside of the cell
Pat down and weigh the cell
Calculate the change in mass of the cell
Throw away your cell
Dump the solution inside of your beaker/test tube without tape down the sink
Write your data on the board
Write down the color of the no tape test tube
Fill the tape test tube with the solution in the beaker and Benedict's solution and put it in the beaker on the hot plate