Halloween Quiz

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We wish you a very Happy Halloween with this science-related quiz.

 


Halloween Quiz

What is the word Halloween an abbreviation of?

See answer

All Hallow's Eve

 


Halloween Quiz

In which country did Halloween originate?

See answer

Ireland

 


Halloween Quiz

From which region in the world do pumpkins originate?

See answer

Central America

 


Halloween Quiz
Do pumpkins grow on stalks, trees, vines, or bushes?

See answer

On vines

 


Halloween Quiz

What is a pumpkin mainly made of?

See answer

90 % water

 


Halloween Quiz

What makes pumpkins orange?

See answer

Carotenoid pigments such as β-carotene

beta carotine

 


Halloween Quiz

Which compound in Halloween chocolates is similar to caffeine?

See answer

Theobromine, named after Theobroma, the genus of the cacao tree (Greek for "food of the gods").
Theobromine was formerly known as xantheose. It is a bitter alkaloid of the cacao plant and is also found in some other foods, including the leaves of the tea plant, and the kola nut. Caffeine differs from theobromine in that it has an extra methyl group.
theobromine

 


Halloween Quiz

Why is human blood red?

See answer

Because of the protein hemoglobin. It contains the red compound heme that is crucial for carrying oxygen through your bloodstream
hemoglobine

 


Halloween Quiz

How long does it take for an individual blood cell to go round your whole body?

See answer

20 seconds

 


Halloween Quiz

Are there animals with blood colors such as green, blue, purple?

See answer

Yes. They use different oxygen-carrying proteins.

Green blood is found in some species of worms and leeches. They use chlorocruorin to transport oxygen


Blue blood is found in crustaceans, spiders, squid, octopuses, and some molluscs. They use hemocyanin to transport oxygen

hemocyanin
Violet blood is found in a few marine worms (peanut worms, penis worms, brachiopods). They use hemerythrin to transport oxygen


Also of Interest

 

 



 

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