T7 food production Flashcards
what is food security
having enough food to be able to feed a population
state the biological factors threatening food security
rising BR
changing diets in developed countries - food is transported around the world
new pests and pathogens
environmental changes affecting food production
increased cost of agriculture
armed conflicts
how does intensive farming increase the production of animals
feed animals high protein foods to increase growth
reduce their energy loss to the environment: limiting movement, regulating their surrounding temperature
feed animals antibiotics to prevent diseases
advantages of intensive farming
higher yield of food
more efficient
allows easier quality control
disadvantages of intensive farming
may lead to antibiotic resistance
cost is high
ethical objections
biodiversity may be reduced
how can fish stocks be conserved
control the size of gaps in fishing nets to prevent juvenile fish from being killed before reaching reproductive maturity
introduce fishing quotas
what is transgenic organism
organism that has been genetically modified to contain genetic material from another source
example of genetically modified foods
golden rice
how might crops be genetically modified
improve nutritional value
be pest resistant
pesticide resistance
advantages of golden rice
contains additional beta-carotene which can be converted to vitamin A in the body, supplementing people who don’t obtain enough vitamin A in their diet to prevent night blindness from forming
what is mycoprotein
protein-rich substance used to make meat substitute food for vegetarians and vegans
how is mycoprotein produced
fusarium, a fungus, is grown on glucose syrup, in aerobic conditions and the biomass is harvested and purified to get the mycoprotein
