Food Flashcards
What do sugary carbohydrates do and name three sources
They give you a fast supply of energy, sweets honey, fruit
Name three (types) of carbohydrates.
Fibre, sugary carbohydrates, starchy carbohydrates.
What do starchy carbohydrates do and give three examples
They give you a slow release of energy, bread rice pasta
What does fibre do and give three sources
Fibre helps move food through the intenstin, fruit some cereal brown bread
What do fats do and give three sources
Fats may supply energy, they insulate the body, store energy in the body, milk, cream, beans
What does protein do and mp name three sources of it
It grows muscles hair enzymes, eggs meat fish
Name two vitamins
Vitamin c
Vitamin d
What does vitamin c do and name a good source of it
It keeps skin and gums healthy
Fruit green veg potatoes
Name two minerals
Iron and calcium.
What does calcium do and name three sources of it
It forms strong bones, milk cheese yogurt
What does iron do and name sources of it
It forms part of the cells, red meat and green veg
What does water do
Water allows cells to function
What is energy measured in
Kilojoules
What chemical is used when testing for starch
Iodine
What colour does it turn when starch is present/absent
From brown to blue/black
What chemical is used for testing for protein
Blue copper sulphate and sodium hydroxide
What colour does it turn when protein is present/absent
From blue to purple
What chemical is used to test for glucose
Benedicts solution
What colour does it turn when glucose is present/absent
From blue to brick red
Go through the basic method of the experiment the conversion of chemical energy to heat energy
Half fill a test tube with water.
Place the test tube of water in a clamp attached to a stand.
Record the temperature of the water using a thermometer
Attach a crisp to the end of your tongs
Light the crisp by holding it in the flame of a Bunsen burner.
Hold the burning crisp under the test tube of water
When the crisp has finished burning, record the temperature of the water again.
What is the conclusion to the conversion of chemical energy to heat energy experiment
That chemical energy in the crisp is converted to heat energy by burning.
The result of the conversion of chemical energy to heat energy experiment
The temperature of the water rises.
Name six constituents of a balanced diet
Carbohydrates (which includes fibre) Fats Protein Vitamin Minerals Water
What does vitamin d do
Forms strong bones
What foods have victim d
Milk butter cheese egg
The amount and type of food needed by each person varies according to factors such as:
age
gender
activity levels
health
