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Does starch solution go into or out of the bag?
OUT OF THE BAG!! the stff is no good
Why does the uncovered part of a life turn blue black after putting iodine solution?
It shows the presence of Starch in the section ot the leave. during photosynthesis when Starch is being produce with the presence of sunlight. it is then tested and found that the exposable part of the leave is containing of Starch.
Why is the cellophane membrane considered to be a selectively permeable membrane?
Only the water can enter into the bag and leave the bag, the tea leaves can not leave the bag.
What will happen when starch is mixed with solutions?
In this scenario, the concentration of solutes (the glucose and starch) is higher inside of the dialysis tubing than it is outside. As such, water will diffuse (via osmosis) into the dialysis tubing causing it to swell.
What happens if starch is present in leaf?
The presence of starch in plants indicate that photosynthesis has occurred. The process of testing the presence of starch uses iodine solution that turns to blue-black on a positive test.
Does starch solution go into or out of the bag?
OUT OF THE BAG!! the stff is no good
If the tubing was permeable to starch which way would the starch move into the tubing or out of the tubing?
Solutions tend to move from areas of high concentration to areas of low concentration. So if a bag is permeable to starch, the starch will rush into the bag.
How will you determine whether iodine entered the dialysis bag containing starch?
If iodine enters the bag containing starch, the contents of the bag will turn blue, purple, or black.
What is the powder inside an air bag?
corn starch
How is a tea bag an example of permeability?
Only the water can enter into the bag and leave the bag, the tea leaves can not leave the bag.
What will happen if you pour starch indicator solution into the cell and filled the beaker with starch and glucose solution?
The starch indicator solution will diffuse out of the bag (cell) into the beaker, changing the color of the starch solution to a blue, purple, or black color (assuming that it's iodine). The color of the indicator solution inside the bag will not change, because only the glucose can diffuse into the bag, but the starch cannot diffuse into the bag.
How is a tea bag an example of selective permeability?
Only the water can enter into the bag and leave the bag, the tea leaves can not leave the bag.
Is a plastic bag permeable to iodine or starch?
Iodine is permeable to a plastic bag because the starch's molecules are too large to pass through the bag (starch is a complex sugar made of a large chain of monosaccharides), while the Iodine can pass through since iodine is usually only two Iodine atoms (I2).
What results would you expect of the experiment started with a glucose and IKI solution inside the bag and only starch and water outside?
The IKI Is small so the pores of in the bag allow it to go throuch but the starch is to big. So based on the size of the molecules, the glucose and IKI would move out of the bag, the water in, and the starch left in the beaker.
How does iodine get in a bag of corn starch?
I am not quite sure what happens when corn starch and iodine are mixed but when corn starch, iodine and water are mixed, it creates a purple solution. The darkness of the colour mostly depends on the iodine. Without the starch with iodine and water, it is deep yellow or brown.
How do you substitute corn starch for flour?
Flour and corn starch are measured the same, but the results aren't always the same.
Which substance are entering the bag and which are leaving the bag?
The starch remains in the dialysis bag because the molecules are bigger than the pores. The potassium-iodide enters the bag (this can be determined because the liquid inside the bag turns black or blue as the iodine reacts with the starch). And the glucose leaves the bag, you probably tested the water in the beaker with a small strip of paper that would have changed color indicating the presence of glucose.
