B2 3.3 – Energy in food production

Some notes of Energy in Food Production.

The questions from the relevant pages in the AQA GCSE Biology Textbook answered :)

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Preview of B2 3.3 – Energy in food production

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B2 3.3 ­ Energy in food production
1. The world population is increasing, consequently more people
need feeding and there are food shortages in many parts of the
world. The animals we eat need space to roam freely and crops
to eat ­ these animals may feed on other animals. And at each
stage of a food chain energy is lost.
The efficiency of food production can be increased if everyone ate
plants instead of animals since the stages in the food chain would be
kept to a minimum ­ more energy would be conserved.
2. Intensive farming is where animals are placed in ideal conditions
(heat and food are provided) but their movements are very
restricted. Outside, energy is used to keep warm whereas inside
this energy isn't dissipated through this method. The animals
are usually as big as they can be and this of course maximises
profit. This form of farming is regarded as being more efficient
but is seen by many [an increasing number of people] as (being)
far too unethical. Many arguments behind intensive/factory
farming are based on what is ethically and morally right and

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