Who discovered the presence of the cellular mitochondria organelle, naming them 'bioblasts' before they were renamed? MCQ with Answer and Explanation
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Question #1
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Who discovered the radioactive elements Radium and Polonium?
Correct Answer: Option D
Explanation:
Marie Skłodowska-Curie and her husband Pierre isolated polonium and radium from pitchblende ore in 1898.
Marie Skłodowska-Curie and her husband Pierre isolated polonium and radium from pitchblende ore in 1898.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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The invention of the common mechanical elevator safety brake system was publicly demonstrated at the World's Fair by whom?
Correct Answer: Option D
Explanation:
Otis dramatic demonstration in 1854 involved cutting the platform support rope while standing on it, proving the safety gear worked.
Otis dramatic demonstration in 1854 involved cutting the platform support rope while standing on it, proving the safety gear worked.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who discovered the therapeutic potential of the anti-malarial drug Artemisinin, winning a Nobel Prize in 2015?
Correct Answer: Option D
Explanation:
Tu Youyou extracted artemisinin from sweet wormwood plants based on traditional Chinese medical texts, saving millions from malaria.
Tu Youyou extracted artemisinin from sweet wormwood plants based on traditional Chinese medical texts, saving millions from malaria.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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