10 Questions
Which methylxanthine is primarily found in chocolate?
Theobromine
In which century was tea first shipped to Europe?
16th century
Where was caffeine discovered in 850 CE?
Ethiopia
Which methylxanthine is a primary metabolite of caffeine?
Paraxanthine
What is the approximate global per capita consumption of caffeine in mg/day?
100 mg/day
Which methylxanthine is native to Mexico and South America and was originally consumed as a beverage called 'chocolatl'?
Theobromine
In which century was the first caffeinated soft drink introduced?
19th century
Which plant species naturally contains caffeine and is believed to have evolved to contain it as a protection from bacteria, fungi, and insects?
Coffee seeds
Where was the first coffee shop opened in 1475?
Constantinople
Which methylxanthine is considered a natural pesticide and is found in over 30 plant species?
Caffeine
Test your knowledge about Methylxanthines, particularly caffeine, with this quiz. Explore the properties, sources, and effects of these CNS stimulants found in coffee, soda, tea, and chocolate.
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