Trivia questions and answers, drawn fresh from the well

• Intermediate Intermediate difficulty.
• The Human Body

Which human organelle contains most of a cell’s genetic material?

Answer

Nucleus

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• Intermediate Intermediate difficulty.
• The Human Body

Which human molecule carries genetic instructions from DNA to ribosomes?

Answer

Messenger RNA

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• Easy Easy difficulty.
• The Human Body

How many chromosome pairs are normally found in a human body cell?

Answer

23 pairs

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• Intermediate Intermediate difficulty.
• The Human Body

What is the approximate lifespan of a healthy human red blood cell?

Answer

120 days

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• Easy Easy difficulty.
• The Human Body

Which human organ is the largest by surface area?

Answer

Skin

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• Intermediate Intermediate difficulty.
• The Human Body

Which blood component forms the initial plug at a damaged human blood vessel?

Answer

Platelets

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• Intermediate Intermediate difficulty.
• The Human Body

Which human blood vessels are the main site where oxygen and nutrients move into tissues?

Answer

Capillaries

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• Intermediate Intermediate difficulty.
• The Human Body

In the human eye, which structure controls how much light enters through the pupil?

Answer

Iris

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• Intermediate Intermediate difficulty.
• The Human Body

Which part of a human neuron usually receives signals from other nerve cells?

Answer

Dendrites

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• Intermediate Intermediate difficulty.
• The Human Body

In the human heart, which valve lies between the left atrium and left ventricle?

Answer

Mitral valve

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• Easy Easy difficulty.
• The Human Body

Which muscle separates the human chest cavity from the abdominal cavity and powers most breathing?

Answer

Diaphragm

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• Easy Easy difficulty.
• Black Holes And The Universe

What is the approximate mass of Sagittarius A*, the Milky Way’s central black hole?

Answer

4 million solar masses

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