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IB Biology HL B1.1.1 Carbon Atom Properties Questions

Practise IB Biology HL B1.1.1 by linking four-bond carbon chemistry to carbon skeletons and the composition of carbohydrates, proteins and fats.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain how carbon’s four covalent bonds and self-bonding create diverse biological compounds and carbon skeletons.
  • Distinguish carbon-containing biological molecules by applying their carbon, hydrogen and oxygen composition.

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Study B1.1.1—Carbon atom properties conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL B1.1.1 Carbon Atom Properties Questions question 1

[Maximum number: 1]

What feature of carbon makes it most suitable as a basis for life?

A

Its abundance in nature

B

Its bonding properties

C

Its reactivity to light

D

Its presence in the early atmosphere of the Earth

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