IB Biology Topic A2.1 Origins of Cells (HL) covers syllabus content as part of Topic A2: Cells under Theme A: Unity and Diversity. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
A2.1 Origins of cells is part of Topic A2: Cells under Theme A: Unity and Diversity.
What this topic covers
A2.1.1 Conditions on early Earth and the pre-biotic formation of carbon compounds (HL only)
A2.1.2 Cells as the smallest units of self-sustaining life (HL only)
A2.1.3 Challenge of explaining the spontaneous origin of cells
A2.1.4 Evidence for the origin of carbon compounds
A2.1.5 Spontaneous formation of vesicles by coalescence of fatty acids into spherical bilayers
A2.1.6 RNA as a presumed first genetic material
A2.1.7 Evidence for a last universal common ancestor
A2.1.8 Approaches used to estimate dates of the first living cells
A2.1.9 Evidence for the evolution of the last universal common ancestor