The willow

Plants are vital for providing food, clothing, and medicine. Over half of modern medicines originate from plant chemicals, with aspirin being a notable example. Its origins trace back to ancient Egypt, where willow bark was used to treat fevers and headaches. In 1763, Edward Stone recognized its healing properties. Willow trees contain salicylates, which were later purified by Felix Hoffman in the 19th century, leading to the creation of aspirin tablets. Aspirin remains a widely used medication today, stemming from ancient plant remedies.

What percentage of modern medicines are derived from plant chemicals?

• Over 10%

• Over 75%

• Over 25%

• Over 50%

Which ancient civilization first used Willow bark for medicinal purposes?

• Ancient Egypt

• Ancient India

• Ancient China

• Ancient Greece

Who was the British figure that linked Willow bark to its healing properties in the 18th century?

• James Watt

• Charles Darwin

• Edward Stone

• Isaac Newton

What are the chemicals in Willow trees that contribute to its medicinal properties?

• Flavonoids

• Tannins

• Alkaloids

• Salicylates

Who was responsible for purifying the chemicals in Willow bark to create aspirin tablets?

• Albert Einstein

• Felix Hoffman

• Louis Pasteur

• Marie Curie