ConceptConceptDocsDocuments

IB Biology HL B1.1.1 Carbon Atom Properties Question Bank

Practise IB Biology HL B1.1.1 by linking carbon bonding to molecular diversity and identifying elemental patterns in biological compounds.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain how carbon bonding enables diverse structures and stable biological molecules.
  • Use elemental composition and bonding evidence to distinguish carbohydrates, proteins and fats.

B1.1.1—Carbon atom properties 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

All question bank results loaded