Set: Lab Quiz #2

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All 12 Terms

Term Definition
Glucose Indicator Solution- Starch Stayed blue, No change.
Glucose Indicator Solution- Glucose Changed to green then to orange and eventually would become red
Starch Indicator Solution- Starch Changed to black.
Starch Indicator Solution- Glucose Stay amber, no change.
Did any starch molecules diffuse of the "cell"? No, the starch molecules are too large.
Did any glucose molecules diffuse out of the "cell"? Yes, glucose molecules are small enough.
Which substance(s) diffused through the cell membrane? Iodine and Glucose.
Which substance(s) did not diffuse through the cell membrane? Starch.
Why were some substances able to pass through the membrane while others were not able to? Explain The starch Molecules were too large to fit through, but the iodine ang glucose molecules were small enough to fit through the cell membrane.
When you add salt solution to the red onion, what happen?Explain The cells got smaller and shriveled up because the salt solution was hypertonic.
What happens to the water content of the red onion cells when they were placed in a salt solution? Explain When the onion cell was placed in a salt solution the onion cell shriveled up because the water diffused out into the salt solution.
Salt Solution Hypertonic.

Set Information

Terms 12
Creator sweetxharte
Created October 14, 2007
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astronomer : sweet good job!!! :mrgreen:
BananaizaFunnyFruit : thnks lauren :lol:
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Most Missed Words

  1. Starch Indicator Solution- Starch → Changed to black. - 1 miss
  2. Which substance(s) diffused through the cell membrane? → Iodine and Glucose. - 1 miss
  3. When you add salt solution to the red onion, what happen?Explain → The cells got smaller and shriveled up because the salt solution was hypertonic. - 1 miss