Chapter 4 - Food And Diet Flashcards
What is photosynthesis?
The way plants make their food
What is food needed for?
- As a source of energy
- To provide material for growth
Name three carbohydrates?
- Sugar
- Starch
- Cellulose
What is the function of starch and what foods contain starch?
Function : to provide energy
Foods : potatoes, pasta, bread
What is the function of sugar and what foods contain sugar?
Function : to provide energy
Foods: fruit, honey, milk
What is the function of Cellulose and what foods contain Cellulose?
Function : to prevent constipation
Foods : green vegetables, cereal
What is the function of Protein and what foods contain Protein?
Function : for growth, to repair cells, to make muscle and hair
Foods : lean meat, egg white, soya, nuts, fish
What is the function of fats and what foods contain fats?
Function : to provide insulation and as an energy store
Foods : butter, milk, cheese, oil
Name two types of vitamins?
- Vitamin D
- Vitamin C
What is the function of vitamin C and what foods contain vitamin C?
Function : healthy skin and gums, prevent scurvy
Foods : Citrus fruits e.g. Lemons
What is the function of vitamin D and what foods contain vitamin D?
Function : strong teeth and bones, prevent rickets
Foods : Cheese, Milk, Yogurt
Name two types of minerals?
- Iron
- Calcium
What is the function of iron and what foods contain iron?
Function : to make red blood cells, to prevent anamia
Foods : red meat, liver, cabbage
What is the function of calcium and what foods contain calcium?
Function : healthy bones and teeth
Foods : milk, tinned salmon
Experiment: To test for the presence of Starch
1) Fill a test tube with starch solution
2) add a few drops off iodine
3) iodine = blue black when starch is present
Iodine = yellow when starch is not present