Diffusion Lab Experiments1. Drop of water on a slide, add particles of Carmin to the water. Add cover and observe under Microscope. 2. https://www.youtube.com/watch?v=aTn56X_fa7Y 3. Working with Membr


Diffusion Lab Experiments

1. Drop of water on a slide, add particles of Carmin to the water. Add cover and observe under Microscope.

2.

3. Working with Membranes.


Solution


Source


Original


Contents


(Beaker and Bag)


Original Color


Final Color


(Beaker and Bag)


Color After Benedict´s Test


(Tubes)

Bag

30% Glucose and Starch

No color,

Chalky

Purple

Orange-Red

Beaker

H2O and I2KI(Lugol)

Pale Yellow

Pale Yellow

Orange-Red

Control

H2O

—-

Blue


Note

Lugols Iodine (Yellow Amber) reacts with Starch and turns Purple or Black

Benedict (Blue) reacts with Glucose (Solution heated) turns Orange, or Orange_Red


Indicator


Color


Reacts with


Turns

Lugols Iodine

Yellow Amber

Starch

Purple or Black

Benedict

Blue

Glucose

Orange

Biuret

Blue

Peptides

Violet

4. Osmotic activity in cells.

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