Flashcards in Nutrition and Health Deck (111)
What are the functions of protein?
- helps you grow
- repairs body if damaged
- maintains body to keep it working well
- gives body energy
What are Proteins?
Proteins are very big molecules and are made of smaller units called amino acids.
Define High Biological Value
Protein foods that contain all the essential among acids are said to be HBV.
Define Low Biological Value
Protein foods that are missing one or more essential amino acids are said to have LBV.
Sources of HBV?
Milk, meat, eggs, fish, cheese
Sources of LBV?
Nuts and seeds, cereals, pulses and beans.
Where is ovalbumin found?
Where is gluten found?
Where is collagen found?
Where is caseinogen found?
Where is lactoglubin found?
What happens to extra protein if it is not used?
It is stored as fat.
What happens if a child doesn't have enough protein?
- stop growing
- hair becomes thin
- cannot digest food
- have diarrhoea
- thin and weak
What happens if a adult doesn't have enough protein?
- become thin
- internal organs become weak
- hair and skin becomes dry
- they get oedema
What is fat molecules chemically known as?
- 1 part glycerol
- 3 part fatty acid
Why we need fat?
- stored as energy
- stored under skin as adipose tissue which is insulating and protects bones
What happens if fat is not soluble?
If it gets oxidised with free radicals, it will get deposited in arteries - leading to fatty plague and heart attack
What happens if there is too much fat?
- heart attack
What happens if there is too little fat?
- thin bones are easily breakable
- slow growth rate
What is the chemical name for Simple sugars ?
What is the chemical name for double sugars?
What is the chemical name for complex sugars?
Name the individual sugars in monosaccharides ( simple sugars) and the foods that supply them
- Fructose ( from plant juices, honey, fruits)
- Glucose (vegetables, fruits, sugar used in cooking)
- Galactose ( milk)
How is sucrose made and what foods supply them?
Unit of glucose and fructose
-found in sugar cane, brown/caster/granulated sugar
How is Lactose made and what foods supply them?
Unit of glucose and galactose
- found in milk and some milk products like yoghurt
How is Maltose made and what foods supply them?
Unit of glucose and glucose
- found in cereal plants, barley, malted drinks
Give five examples of complex sugars
Starch, Dietary fibre, pectin, Dextrin, Glycogen
What is starch broken down to suturing digestion?
What is the function of Starch?
It is the main energy source for plants.