T7 food production Flashcards Preview

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Flashcards in T7 food production Deck (12)
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1
Q

what is food security

A

having enough food to be able to feed a population

2
Q

state the biological factors threatening food security

A

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

3
Q

how does intensive farming increase the production of animals

A

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

4
Q

advantages of intensive farming

A

higher yield of food
more efficient
allows easier quality control

5
Q

disadvantages of intensive farming

A

may lead to antibiotic resistance
cost is high
ethical objections
biodiversity may be reduced

6
Q

how can fish stocks be conserved

A

control the size of gaps in fishing nets to prevent juvenile fish from being killed before reaching reproductive maturity

introduce fishing quotas

7
Q

what is transgenic organism

A

organism that has been genetically modified to contain genetic material from another source

8
Q

example of genetically modified foods

A

golden rice

9
Q

how might crops be genetically modified

A

improve nutritional value
be pest resistant
pesticide resistance

10
Q

advantages of golden rice

A

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

11
Q

what is mycoprotein

A

protein-rich substance used to make meat substitute food for vegetarians and vegans

12
Q

how is mycoprotein produced

A

fusarium, a fungus, is grown on glucose syrup, in aerobic conditions and the biomass is harvested and purified to get the mycoprotein