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Title: Energy contents within food
Description: Energy contents within food full detailed explanation, written for IGCSE or GCSE students. These notes helped a lot of students achieve a pass and higher for their (I)GCSE's.

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Nutrients are very useful for the human body, and we would not be able to survive
without them
Nutrient

Source

Function

Carbohydrates
i) simple sugar
ii) complex
- starch
iii) fibre
[cellulose]

===
Fruits
Rice/Corn/Potatoes
Vegetables

===
Carbohydrates are mainly
used for energy
...


Proteins

i) Animal Sources
• Meat (beef/lamb/pork)
ii) Plant Sources
• Nuts/Beans(soy/almonds)

Builds up Muscles
Helps with repairing the
body
Emergency energy in case
there isn’t enough energy
from carbs/lipids

Lipids

===
Animal Sources (meat fat)
Plant Sources (eg olive oil)

===
Very very very high source of
energy, helps body keep
warm
...


Milk
Spinach

Bones

i) Solid =
Fat
ii) Liquid =
Oil
Vitamin
A) Retina
C) Acids
D) Helps absorb
calcium
Mineral
Calcium
Iron

How to calculate energy content in food:
To calculate the amount of energy in food, you can do that by calculating the delta in
the temperature between initial temperature of water, and the temperature after all
the energy in the food has been used up
Title: Energy contents within food
Description: Energy contents within food full detailed explanation, written for IGCSE or GCSE students. These notes helped a lot of students achieve a pass and higher for their (I)GCSE's.