IB Biology HL 2.2.1 Cell Theory
Practise IB Biology HL 2.2.1 by outlining cell theory precisely and interpreting evidence from unicellular and multicellular organisms.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Outline the cell theory using the claims about cellular composition, basic units and pre-existing cells.
- Interpret evidence from unicellular organisms and cell division when supporting cell theory.
A2.2.1—Cells as basic structural unit question 1
[Maximum number: 2]
Outline the cell theory.
living things are composed of cells;
b. cells are the basic/smallest unit of life;
c. cells come from pre-existing cells;
Marking guidance:
Do not accept cells are the "smallest organisms".
Do not accept "cells are the building blocks" of life on its own.
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