Practice Molecules (1) - Theme A: Unity and Diversity - IB 12 Sciences Biology
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Molecules

Practice - Molecules

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Practice Questions

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Question 1 Easy

Which property of water allows it to "stick" to itself, creating surface tension that lets small insects walk across its surface?

  • Answer: Cohesion (caused by hydrogen bonding).
  • Hint: Think about the "tiny magnets" analogy from the audio book.

💡 Hint: Think about the "tiny magnets" analogy from the audio book.

Question 2 Easy

True or False: RNA is typically a double-stranded molecule shaped like a twisted ladder.

  • Answer: False.
  • Hint: DNA is the double helix; RNA is usually single-stranded.

💡 Hint: DNA is the double helix; RNA is usually **single-stranded**.

4 more questions available