Protein Flashcards
(28 cards)
What is the primary function of protein?
For growth, repair and maintenance of all body cells and tissues.
If someone doesn’t have enough carbohydrate or fat in their diet, protein will be used for the production of ________ to keep that person alive.
Energy
What is the secondary function for protein?
It is used as energy when a person doesn’t get enough fat or carbohydrate.
Does everyone need protein, even when they have stopped growing?
Yes
Why do babies and children require a lot of protein for their size?
It helps growth occur.
Why would adolescents need protein?
For growth and repair of tissue. It can be a secondary source of energy to meet the demands of growth spurts or high physical activity level.
Why do pregnant women require more protein than normal?
For the growth of the foetus and for repair and maintenance of the mother’s body tissue during and after pregnancy.
Why would nursing mothers require more protein than normal?
For the production of milk for breastfeeding.
What are proteins made up of?
Amino acids.
Why are some amino acids known as indispensable amino acids?
Because they must be included in the foods we eat because we can’t do without them.
How many IAA’s are required for children and how many for adults?
10 for children and 8 for adults.
Why are dispensable amino acids not essential in the diet?
Because they can be made in the body.
What does HBV and LBV stand for?
High Biological Value and Low Biological Value
What do HBV proteins supply that LBV proteins lack one or more of?
IAAs (indispensable amino acids)
Name 4 HBV proteins.
Red meat, fish, eggs, dairy, poultry, quorn and soya*.
Name 4 LBV proteins.
Nuts, seeds, pulses, bread, rice, oats, pasta and gelatine*.
Name 3 examples of HBV proteins that are plant foods?
Tofu, soya milk, soya beans.
What is it called when you eat an LBV protein along with a HBV protein that contains the missing amino acid?
Protein complementation.
LBV + LBV = ?
Protein complementation because they will contain the missing amino acids in each other.
LBV + HBV = ?
Protein complementation because the HBV contains the missing amino acids from the LBV.
HBV + HBV = ?
NOT protein complementation because no amino acids are missing.
State 2 examples of protein complementation.
- Rice (LBV) and bean chilli (LBV)
- Pasta (LBV) and chicken curry (HBV)
- Cheese (HBV) on toast (LBV)
What are the amino acids in LBV proteins and what is missing in HBV proteins?
In LBV proteins, one or more amino acid is missing. In HBV proteins, all amino acids are present.
What is the name of the chronic protein deficiency?
Kwashiorkor
