Food Production Flashcards
Yield
the total biomass of plant material produced
e.g. - a mature potato plant
Biomagnification
increased concentration as you move up the food chain
Protein Synthesis
making protein from amino acids
Grazing
animals feeding on grass
Biological Control
a method of controlling pests without harming the environment e.g. - lady birds being released to kill
green flies
Persistence
how long chemicals remain without breaking down
Monoculture
a single crop growing in an area of farm land
Intensive Farming
high input, high output
Synthesised
to make new compounds from existing ones
Algal Bloom
high algal growth blocks out light
Amino Acids
the chemical units from which proteins are made
Plant Proteins
e.g soya beans
Toxicity
the ability of a chemical to kill organisms
Bioaccumulate
a chemical which builds up over time in the body of organisms
Pesticides
a chemical sprayed on crops to kill pests
e.g. - DDT
DDT
insecticide that has built up in a food chain
Leaching
nutrients removed from soil by water run-off
Eutrophication
process that can lead to species loss in water
Aerobic
with oxygen
Nitrate
the chemical absorbed from the soil by plants to produce their protein
Mayfly Nymph
high water quality indicator
Stonefly Nymph
high water quality indicator
Fertiliser
makes soil more fertile (grows more)
Nitrogen Cycle
the sequence of events involved in recycling of nitrogen in the environment
GM Crops
(genetically modified)
changing genetic material to benefit humans
e.g. - golden rice
Blood Worms
poor water quality indicator
Sulphur Dioxide
common air pollutant
Indicator Species
species that show a level of pollution at a sight
Crusty Lichen
poor air quality indicator
Bushy Lichen
good air quality indicator
