nys diffusion lab movement through a membrane. the benedict’s test hnqok hnqok benedict’s...
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NYS Diffusion Lab
Movement Through a Membrane
The Benedict’s Test
• http://youtu.be/QU0VBcHnQOk
Benedict’s solution is BLUE and will turn YELLOW, ORANGE, GREEN, OR RED IN THE PRESENCE OF A SIMPLE SUGAR (MONOSACCHARIDE)
OSMOSIS
OSMOSIS is the diffusion of water
Adding SALT water will make a cell SHRINK
Adding DISTILLED WATER will cause a cell to SWELL back up
Osmosis Videos
http://youtu.be/GOxouJUtEhE
http://www.kscience.co.uk/animations/turgor.htm
Diffusion
Diffusion is the movement of molecules from high to low concentration.
Iodine, Glucose, Starch
ResultsStarch + Lugol’s Iodine = PURPLE/ BLUE BLACK
GLUCOSE + Glucose Test Strip = Turns GREEN
STARCH DID NOT DIFFUSE BECAUSE IT WAS TOO BIG!
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