Food production

• What is food production ?

  Having enough food to be able to feed a population
• State the biological factors threatening food security

  Rising birth rates

  Changing diets

  New pests and pathogens

  Environmental changes

  Increases cost of agriculture

  Armed conflicts
• How does intensive farming increase the production of animals ?

  Feed animals high protein to increase growth

  Feed animals antibiotics to prevent diseases

  Reduce their energy loss by :

  Limiting movement

  Regulating surrounding temperatures
• What are the advantages of intensive farming ?

  Higher yield of food

  More efficient

  Allows easier quality control
• What are the disadvantages of intensive farming ?

  May lead to antibiotic resistance

  High cost

  Ethical objections

  Biodiversity may be reduced
• How can fish stocks be conserved ?

  Control the size of fish gaps in nets

  Introduce fishing quotas
• What is a transgenic organism ?

  A genetically modified organism that contains genetic material from another source
• State an example of genetically modified foods

  golden rice
• Why might crops be genetically modified ?

  To improve nutritional value

  To be pest resistant

  To be pesticide resistant