Word Pairs

HOW TO PLAY:

  • Type the correct word in the boxes from the pairs of words [in brackets].
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

Words
The world of plants is full of natural medicinal wonders, but some species of flowers can be [deathly / deadly] . Killers have used these for [centurions / centuries] to poison people. However, [botanists / botany] at Michigan State University and the Czech Academy of Sciences have discovered that two particularly poisonous plants could have [residences / properties] that may be used to make new [potions / medicines] . The scientists conducted research [in / on] two flowers: wolfsbane and larkspur. Ingestion of small [amount / amounts] of wolfsbane could cause [dead / death] respiratory paralysis or heart failure. The toxic larkspur can cause skeletal muscle [weak / weakness] . Researchers say "biohacking" [off / of] the plants' chemical makeup could create valuable therapeutics.

The researchers recreated [a / the] toxic compounds from the two plants. Study co-author Dr Garret Miller said: "We know they interact [up / with] our bodies in so [many / much] ways, and understanding how to create them can help provide [totally / total] new routes for testing." They could be used as a painkiller, to [threat / treat] malaria and cancer, and to kill pests. Researcher and biochemistry professor Bjorn Hamberger said: "Plants are the best chemists [abound / around] , upgrading their arsenal [at / of] natural compounds [over / under] millions of years to help them survive." Another researcher, Lana Mutabdzija, said: "Many of the medicines we use today [neither / either] come directly from plants or are inspired [by / of] plant chemistry."

Back to the toxic flowers lesson.

Share this lesson

More Free Sites by Sean Banville

Online Activities