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

1. 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 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

https://www.youtube.com/watch?v=RYm4bMg4i1U

4. Osmotic activity in cells.