Untitled Lesson

Biological molecules &
Nutrients

Carbohydrates

​Function: an energy source (fast, simple)

Carbohydrates

​Lipids

​Function: provide longer term store of energy

​Structure:
glycerol + 3 fatty acids

​Proteins

​Function:

​Vitamins

​Vitamin	​Function	​Food sources	​Avitaminosis
​	​	​	​

​Vitamins

​Vitamin	​Function	​Food sources	​Avitaminosis
​	​ - Cell metabolism	​	​

​Vitamins

​Vitamin	​Function	​Food sources	​Avitaminosis
​	​	​	​ Scurvy - bleeding gums

​Vitamins

​Vitamin	​Function	​Food sources	​Avitaminosis
​	​	​	​Rickets disease

​How to make a food sample?

​1. Get a piece of food and break it up using a pestle and mortar

2. Transfer this mass to a special glass capacity and add some distilled water

3. Dissolve some of the food by stirring the liquid

4. Filter the solution using a filter paper to get rid of the solid bits of food