Download Year 7 – Basic Skills

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Protein- Why do we need it?
Protein is the most important nutrient. This is
because it is the only nutrient that can be used for
growth and the building and repair of body cells.
What foods are good sources of protein?
Proteins - what are they?
Proteins are made up of long chains of building blocks
called amino acids.
There are 20 amino acids that make up proteins!
Our bodies can make 11 amino acids called non
dispensable amino acids.
We need to obtain the other 9 essential amino acids
from our diet!
Amino Acids
 10 essential amino acids are needed by
children for growth
 8 essential amino acids are needed by adults
for the repair and maintenance of body cells
Foods containing all the essential amino acids are
said to have high biological value (HBV).
HBV foods come from animal sources and
include….
Meat, fish, poultry, eggs, milk and cheese. (Soya is
the only plant HBV protein!)
Other protein sources from plants include; peas,
beans, lentils, cereals such as rice, wheat flour,
pasta, nuts & seeds.
These foods tend to lack one of the essential
amino acids and are said to have low biological
value (LBV).
Write down a definition….
High Biological Value (HBV) - Protein foods
containing all of the essential amino acids including,
meat, fish, cheese, eggs, milk and also soya.
Low Biological Value (LBV) - protein foods that
lack one of the essential amino acids including, peas,
beans, lentils, cereals such as rice, wheat flour,
pasta, nuts and seeds.
Vegetarians
Lacto ovo Vegetarians - don’t eat meat but will eat
eggs and dairy products.
Lacto vegetarians - do not eat meat or eggs but will
eat dairy products such as milk.
Vegans - DO NOT eat any animal products which
include meat, poultry, fish eggs and dairy products
and bee products like honey.
Soya Beans
Whole soybeans are an excellent
source of protein and dietary fibre. Soy
protein is the only vegetable with a
complete protein. Raw soybeans are
toxic to humans so must be cooked!
Soya beans can be made into many
products including soy flour and
soymilk!
Quorn is the name of the brand!
Mycoprotein is the main ingredient in all
Quorn products. It's made from a member
of the fungi family. It is low in fat and can
be made into many shapes and sizes.
(HBV source of protein)
Textured soya is a protein made
from wheat and soya beans. It can
be made into different shapes and
sizes and even made into products
which look like ham, beef and
poultry.
Tofu is soya bean curd and can
be used in stir fries and other
dishes. It is high in protein and
also calcium!
Quiz ??
Protein is needed for …
A) Energy & warmth
B) Growth & the building and repair of body cells
C) A healthy digestive system
Proteins are made up of …
A) Nutrients
B) Essential Minerals
C) Amino Acids
Proteins which contain all of the
essential amino acids are called…
A) High Biological Value proteins
B) Low Biological Value proteins
C) Extra Value proteins
High Biological Value proteins
include….
A) Pasta, rice, peas, cereals, nuts
B) Eggs, Milk, Cheese, Meat, Fish & soya
C) Eggs, milk, bread, rice, pasta
Lacto ovo Vegetarians do not eat
meat but will eat….?
A) Eggs & Diary products
B) Fish & poultry
C) Dairy products except for eggs
Soya beans, Quorn & Tofu are a good
meat alternative for which group
people?
A) Coeliacs
B) Diabetics
C) Vegetarians
Low Biological Proteins…
A) Are bad for our health
B) Provide all the essential amino acids
C) Lack one of the essential amino acids
Lacto Vegetarians will eat….
A) Fish & poultry
B) Eggs & Dairy products
C) Dairy products except for eggs
Vegans will….?
A) not eat any animals products except
for milk
B) not eat any food that comes from
an animal
C) eat dairy products
10 essential amino acids are needed
by children. How many are needed
by adults?
A) 5
B) 12
C) 8