Week 3 The Digestive System
Task 1 Complete all text and Homework from Week 2 of the program The Digestive system
Task 2 Tests for Nutrients found in foods
Foods are mixtures of Macro-Nutrients. Macro-Nutrients are large molecules such as carbohydrates. proteins and lipids (fats and oils).
Carbohydrates (sugars and starch) and proteins can be detected by the use of an indicator, which is a chemical that produces a characteristic color when a particular substance is present.
Lipids can be detected by their ability to make paper translucent.
In this lab, you will test foods for various macro-nutrients, and compare your tests to standards, which are the results of tests that show a positive response for a known substance.
SAFETY: Always wear safety goggles when working with chemicals.
Lipids can be detected by their ability to make paper translucent.
In this lab, you will test foods for various macro-nutrients, and compare your tests to standards, which are the results of tests that show a positive response for a known substance.
SAFETY: Always wear safety goggles when working with chemicals.
Task 3
Task 4 Digestive enzymes Laboratory Session
Download the Worksheet and save it. Use it to complete the Review questions and conduct and record your practical session.