A2.1.2—Cells as smallest units of life Topic Practice
A2.1.2—Cells as smallest units of life Topic Practice
Practise deciding whether a structure is alive by weighing cellular features such as metabolism, genetic material, lipid bilayers and movement.
How this is tested
- distinguish metabolism from features that alone do not prove life
- apply criteria for life to multiple-choice descriptions of cell-like structures
- explain why genetic material or movement may be insufficient evidence of life