Question |
Answer |
Why do we need food |
Energy, growth and repair of cells and protection against disease |
What are the five main nutrients (food groups)
|
carbohydrates, fats, proteins, vitamins and minerals |
ICarbohydrates can be divided into three separate groups, what are they |
Sugar, Starch and Fibre |
What is the function of carbohydrates |
provides energy |
What is the function of fibre |
Prevents constipation |
Name two sources of sugar |
Jam, honey |
Name two sources of starch |
potatoes, pasta |
Name two sources of fibre |
Bran, vegetables |
What is the function of fats |
provides heat and energy |
What is the function of proteins |
Growth and repair of cells |
Name two sources of fats |
Butter, Cheese |
Name two sources of proteins |
Lean meat, Fish |
What is the function of vitamins |
Healthy skin and gums and strong bones |
Name two common vitamins |
Vitamin C And Vitamin D |
From what foods can you get Vitamin C |
Citrus fruits e.g. Oranges |
From what foods can you get Vitamin D |
Milk, cheese |
What is the function of vitamin C |
Healthy skin and gums |
What is the function of Vitamin D |
Strong bones |
Name two common minerals in the diet |
Calcium and Iron |
Why is calcium important In the diet |
Strong healthy bones |
Why is iron important in the diet |
To make red blood cells |
From what foods do you get calcium |
Milk and cheese |
From what foods do you get Iron |
Liver and spinach |
What percentage of the human body is made of water |
70% |
Why is water important in the diet |
It transports dissolved substances around the body |
Why do we have to drink water |
To replace water lost from the body through sweat or urine |
What do you call a diet that contains the right amount of all food types needed to stay healthy |
Balanced diet |
What is a food pyramid |
A diagram that shows the amount of each food type an average person should have to have a balanced diet |
To test for fats what are the two main things that are needed |
Brown paper and oil |
If oil is present what happens on the brown paper |
A translucent spot appears |
What does translucent mean |
It lets light through |
To test for starch what is the name of the dye that is added to the starch solution |
Iodine |
What colour is iodine |
Yellow |
What colour does the starch solution turn to if starch is present |
Blue/black |
What is another name for the test for protein |
Biuret test |
When testing for protein what is the name of the reagents that are added to the milk |
Sodium hydroxide and Copper sulphate solution |
If protein is present in the milk what indicates a positive result |
A purple colour |
When testing for glucose what is the name of the reagent that is added to the glucose solution |
Benedicts Solution |
If Glucose is present what colour change occurs after placing in a boiling water bath for 3minutes |
A brick red colour |
When investigating the conversion of chemical energy into heat energy what happens to the thermometer above the burning food sample |
Temperature rises |