GMOS and human population growth (Edexcel GCSE Biology): Flashcards
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Alternative names for genetically modified organisms
Alternative names for genetically modified organisms
GM organisms or GMOs
Main purpose of using GMOs globally
Main purpose of using GMOs globally
Provide food for people suffering from hunger
Benefits of insect-resistant GM crops
Benefits of insect-resistant GM crops
Improves crop yields and reduces need for pesticides
What does Bacillus thuringiensis produce?
What does Bacillus thuringiensis produce?
Toxin that kills insect larvae harmful to crops
Is Bt toxin safe for humans, animals, and other insects?
Is Bt toxin safe for humans, animals, and other insects?
Yes, harmless to them
Risk of constant Bt toxin exposure to pest insects
Risk of constant Bt toxin exposure to pest insects
Insects may develop resistance to the toxin
Current world population trend
Current world population trend
Rising rapidly
What is food security?
What is food security?
Access to enough safe, nutritious food
What does Golden Rice help the body produce?
What does Golden Rice help the body produce?
Vitamin A
What do critics say should be tackled before using GMOs?
What do critics say should be tackled before using GMOs?
Poverty
Key nutrients that fertilisers contain
Key nutrients that fertilisers contain
Nitrates and phosphates
Problem caused by excess fertilisers in rivers/lakes
Problem caused by excess fertilisers in rivers/lakes
Eutrophication
What do biological control methods use?
What do biological control methods use?
Other organisms to reduce pest numbers
Example of biological control in Australia
Example of biological control in Australia
Cane toads introduced to eat crop-damaging beetles
Problem with cane toads in Australia now
Problem with cane toads in Australia now
They became pests, poisoning native species that eat them