A source of energy.
Cell membranes and
insulating the body.
Carbohydrates
Potatoes,
pasta, bread,
bananas,
sugar and
rice.
A source of
energy.
Minerals
Milk, Spinach
Vitamins
Lemons,
Oranges
and Eggs
Water
Needed to stop a person
from becoming dehydrated
All Fruits
Fibre
Needed to keep the large
intestine working well
Cereal,
Broccoli
Poor diets can lead to
deficiency diseases.
Too little vitamin D --->
Rickets (Affects growth of
skeleton)
Metabolic rate
The speed at which chemical
reactions take place in the body.
Affected
by:
Age
Inherited
factors
Muscle:Fat
proportion
Amount
of
physical
activity
Balanced Diet
A Balanced Diet
contains different
food types in the
correct amounts
If a person eats an
unbalanced diet they
lack a food type which
their body needs, they
will suffer Malnutrition
We need to eat fruit
because it contains
essential Vitamins
and Minerals ( C,E
and A
Salt
Too much salt
leads to: Risk
of Stroke,
Risk of Heart
Attack and
Increase of
Blood
Preasure
Respiration
Energy allows
the body to:
Grow, Repair,
Keep Warm,
Move and
Feel
Respiration: Is the transformation of stored chemical
energy in food to useful energy to the body
The formula for Respiration is: Glucose +
Oxygen = Carbon Dioxide + Water +
Energy
Oxygen and Glucose needed for respiration are carried to
all the cells in the blood. Glucose and Oxygen are the
reactants and the Carbon Dioxide and Water are the
products.
Route of the air
Air Passes through the Trachea, Reaches the Alveoli where
gas exchange happens, Oxygen enters the blood and it is
taken to all the cells of the body, the Carbon Dioxide leaves
the blood and is carried to the lungs where it is breathed out