Food Production — GCSE Biology Revision
Revise Food Production for GCSE Biology. Step-by-step explanation, worked examples, common mistakes and exam-style practice aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP.
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Go to Human Impact on the EnvironmentWhat is Food Production?
With a growing human population, we need to produce food more efficiently. Modern farming methods aim to increase the yield of crops and livestock. This involves using fertilisers, pesticides, and intensive farming techniques like battery farming. However, these methods can have negative impacts on the environment and animal welfare.
Board notes: Covered by all major boards (AQA, Edexcel, OCR). The methods for increasing food production and the associated pros and cons are key.
Step-by-step explanationWorked example
A farmer grows a large field of wheat (a monoculture). To maximise yield, they add nitrogen-based fertilisers to the soil to promote growth. They also spray the crop with pesticides to kill insects that might eat the wheat and herbicides to kill weeds that would compete for light, water, and nutrients.
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Common mistakes
- 1Confusing pesticides and fertilisers. Fertilisers provide nutrients to help crops grow, while pesticides are chemicals used to kill pests (insects, weeds, fungi) that would otherwise damage the crop.
- 2Thinking that all farming is intensive. There are also organic farming methods that avoid artificial chemicals and focus on sustainability, although they often have lower yields.
- 3Ignoring the ethical issues of intensive farming. Keeping animals in cramped, controlled conditions (e.g., battery hens) raises significant concerns about animal welfare.
Food Production exam questions
Exam-style questions for Food Production with mark-scheme style solutions and timing practice. Aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP specifications.
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Step-by-step method
Step-by-step explanation
4 steps · Worked method for Food Production
Core concept
With a growing human population, we need to produce food more efficiently. Modern farming methods aim to increase the yield of crops and livestock. This involves using fertilisers, pesticides, and int…
Frequently asked questions
What is hydroponics?
Hydroponics is a method of growing plants without soil, using mineral nutrient solutions in a water solvent. It allows for high yields in a small space but can be expensive to set up and maintain.
Why is it more efficient to eat plants than animals?
Energy is lost at each trophic level. By eating plants (producers) directly, we get more of the energy from the sun than by eating animals (primary consumers) that have eaten the plants. It is a more efficient use of the land's resources.