Food is a source of building materials and energy
I can explain how food is used for growth and repair and to provide energy, and interpret information on food labels about the amounts of nutrients and energy provided by different foods.
Food is a source of building materials and energy
I can explain how food is used for growth and repair and to provide energy, and interpret information on food labels about the amounts of nutrients and energy provided by different foods.
Lesson details
Key learning points
- Food is a source of building materials to make biomass for growth and repair.
- Food also provides the fuel for cellular respiration, to provide energy for life processes.
- Different individuals require different daily amounts of food and energy.
- Food labels contain information on the content of the food and daily recommended amounts of nutrients and energy.
- The amount of energy provided by food can be compared in kilojoules or calories.
Common misconception
Protein is the main source of energy in our diets.
Carbohydrates and fats are the main source of energy in our diets.
Keywords
Food - Source of building materials and energy for living organisms.
Biomass - Dry mass of a living organism.
Joule - Unit of energy.
Kilojoule - 1 kilojoule is 1000 joules.
Calorie - Unit of energy used on food labels.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
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Starter quiz
6 Questions
provides energy
provides energy, insulation and are in cell membranes
builds cells and tissues
helps to strengthen bones and teeth
Exit quiz
6 Questions
