G7 Visking Tube Practical

Lesson Objective

To understand the role of osmosis in the digestive system.

Practical

Success Criteria : Show that starch molecules DO NOT go through the visking tubing and that glucose molecules DO.

Materials:

• Water
• Visking Tube
• Boiling tube
• Starch
• Amylase
• Iodine
• Benedict's solution

Go to google classroom, download the Lab Planning Document and start working on it (30-45 mins) Perform the practical (30 mins).

Gut bacteria may tell you what to eat

Physiology of the small intestine

Homework due in the coming Wednesday, the 29th:
Review Questions