food security and gmos

Question 1

food security def

Answer 1

occurs when all people are able to access safe and nutricious food to meet their requirements for a healthy life, in ways the planet can sustain in the future

Question 2

problems with FS

Answer 2

faces challenges meaning people can’t access adequate food worldwide
must be sustainable: meet current needs without affecting ability to meet demands in the future

Question 3

Factors affecting FS

Answer 3

rising population (more ppl to feed)
diets change, food transported worldwide, more meat consumed ( resource intensive)
new pests kill crops and livestock, can lead to famine
environmental changes as a result of climate change can decrease food yields
price increase of food as agricultural inputs are expensive
conflicts disrupt food production and transportation

Question 4

increase in global food production

Answer 4

land cleared for agriculture
application of fertilisers, pesticides, herbicides and other chemicals
selective breeding
genetic modification

Question 5

GMOs

Answer 5

organisms whose genome have been modifies ( usually adding a helpful gene such as pest resistance)

Question 6

what may crops be modified for

Answer 6

pest resistance- reduce crop damage and incr yield
increased nutrients- eg, adding vitamin A to rice (golden rice) to reduce deficiency diseases which can cause blindness
drought/ virus/flood/ pesticide resistance
increased yield

Question 7

mycoprotein

Answer 7

used as high protein meat alternative
made by fungi
grown in aerobic conditions on glucose syrup