IB Biology SL 2.2.1 Cell Theory
Practise IB Biology SL 2.2.1 by stating the three core claims of cell theory and recognising evidence from single cells and cell division.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- State that organisms are composed of cells and cells arise from pre-existing cells.
- Use unicellular and multicellular examples as evidence for the central statements of cell theory.
- Distinguish cell-theory claims from statements that are not universal for every cell.
A2.2.1—Cells as basic structural unit question 1
[Maximum number: 2]
Outline the cell theory.
a.
cells can only arise from preexisting cells
2 max
b
living organisms are composed of cells/smallest unit of life
c
organisms consisting of only one cell carry out all functions of life in that cell/cells perform life functions «at some point in their existence»
d
although most organisms conform to cell theory, there are exceptions
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