11. The food that you eat and drink regularly
To make something continue at the same level
A part or share of a whole
12. Words Definitions
Diet The food that you eat and drink regularly
Maintain To make something continue at the same level
Proportion A part or share of a whole
The relationship between two groups of people or things that is
Ratio represented by two numbers showing how much larger one group is than
the other
Obtain To get something, especially by making an effort
Starch A white CARBOHYDRATE food substance found in potatoes, flour, rice
Yam The large root of a tropic plant that is cooked as a vegetable
Digest What is it that changes the food into substances that your body can use
Cell The smallest unit of living matter that can exist on its own
Tissue A mass of cells that form different part of humans, animals, plants
Beneath Under something or somebody
Insulate To protect somebody or something
Convert To change or make something change from one form to another
Soluble That can be dissolve in a liquid
Absorption The process of a liquid ,gas or other substance being taken in
Reproduction The act or process of producing babies ,young animals or plants
Efficiently Doing something well with no waste of time
13. Healthy diet
• A healthy diet is one that helps
maintain or improve general health.
It is important for lowering many
chronic health risks. A balanced diet
must contain carbohydrate, protein,
fat, vitamins, mineral salts.It must
contain these things in the correct
proportions.
14. Balanced diet
02/01/2012
A balanced diet should contain fats, proteins and
carbohydrates in roughly these amounts:
Carbohydrates
Fat
Protein
It should also contain water, vitamins, minerals .
16. Carbohydrates
• These provide a source of energy.
• We obtain most of our carbohydrate
in the form of starch. This is found
in potato, rice, spaghetti, yams,
bread and cereals. Our digestive
system turns all this starch into
another carbohydrate called
glucose. Glucose is used by our
tissues as a source of energy.
18. Proteins
• Proteins are required for growth
and repair.Proteins are very large
molecules, so they cannot get
directly into our blood; they must
be turned into amino-acids by
the digestive system. Our cells get
their amino-acids from the blood.
20. FAT
• Fats are used as a source of energy:
they are also stored beneath the
skin helping to insulate us against
the cold. Do not think that by
avoiding fat in your diet you will
stay thin and elegant
• You must have some fat in your diet
because it contains fat soluble
vitamins.
22. Vitamins
Vitamin A: good for your eyes.
Vitamin B: about 12 different
chemicals.
Vitamin C: needed for your
body to repair itself.
Vitamin D: can be made in your
skin, needed for absorption of
Calcium.
Vitamin E: the nice one -
reproduction
23. Poor diets
02/01/2012
If we don’t have a balanced diet we may suffer form a
“deficiency symptom”:
Lack of… Causes…
Vitamin D Anaemia
Protein Scurvy (bleeding gums and joints)
Vitamin C Weak bones and teeth
Vitamin A Wasting of body tissue
Iron Rickets
Calcium Poor night vision
24. HAEMOGLOBIN
A drop of blood contains millions of red blood cells,
or erythrocytes. These specialised cells are like
flattened discs, which gives them a much greater
surface area with which to exchange oxygen and
carbon dioxide in the lungs and with body cells.
Red blood cells are able to carry oxygen so
efficiently because of a special protein inside them:
haemoglobin. In fact, it is the haemoglobin that is
responsible for the colour of the red blood cell.
Haemoglobin contains an iron atom at its centre.
25. Illness
• Rickets is a disease of growing bone due to
deficiency of vitamin D, magnesium.
26. Scurvy
• Scurvy is a condition where an individual has a
vitamin C (ascorbic acid) deficiency. The name
scurvy comes from the Latin scorbutus, and
humans have known about the disease since
ancient Greek and Egyptian times.