Food Testing, Nutrients

Aim: The Aim is to learn about simple or complex sugars, Protein, and foods. and we should try to identify if one food is a complex, simple, protein or carbohydrate food. The food we will be testing on and all of the nutrients are Bread,  Sugar, Egg, Apple, Milk, and Potato.

Hypothesis. What I think is in each foodsFor the Hypothesis, I think That the Bread is a complex, Sugar or lollies is simple sugar an egg would be protein, And Apple would be a Complex, Milk would be a Protein Etc... 

Carbohydrates - Sugar - To make Energy
Protein - For Growth - To repair Muscles
Lipids - Fats & Oils - Insulate/Protect, Organs, Energy

Complex -  Long Slow Energy...

Simple - quick Short energy...

Method:
Iodine, we used two drops of iodine in each food...
The Foods, Apple, Banana, Potato.
If the food turned black that means they are a complex sugar
If they turn another color they are a simple sugar
Result: They All seemed to turn black that means they are all Complex

we also put two drops iodine in another bunch of food samples.
Our Test 2 food samples turned yellowish, brownish. that means there are no complex sugars in the foods...


Aim: To test if a sample of food contains protein.

Equipment: Test Tube, Sodium hydroxide, Copper sulfate, Food sample

Method:
1. Place about 2ml of the sample into a test tube and add 5 drops of sodium hydroxide
2. Add 5 drops of copper sulfate
3. Skate the test tube gently from side to side

Results: 
Milk and egg Positive.
Apple, potato, bread, glucose negative

Conclusion I got 4 right, Egg, Milk, apple and bread

Discussion it was fun to do and I would like to do it again but with different foods and chemicals, I learnt what simple and complex sugars and that apples are complex

Simple	Food	Complex
X	Egg	X
X	Bread	✓
X	Milk	X
Some	Potato	✓
X	Apple	✓
X	Glucose	X