IB Diploma Biology HL, topic B2
Cells (Form and function)
Cells (Form and function) is about how the structure of a cell suits its function: how membranes are built and control what crosses them, how organelles divide a cell into compartments, and how cells specialize in size, shape and contents. HL adds membrane fluidity, gated channels and pumps, detailed organelle function, and the adaptations of pneumocytes, muscle cells and gametes.
Revision notes
Worksheet
FlashcardsSubtopics
Work through them in order. Each one has notes, exam questions and flashcards, and a PDF of each.
- 1Membranes and membrane transport Spec B2.1IB Biology B2.1: lipid bilayers, simple diffusion, osmosis and aquaporins, channels and pumps, the fluid mosaic model and HL membrane transport.NotesQuestions 8Flashcards 25
- 2Organelles and compartmentalization Spec B2.2IB Biology B2.2: organelles, cell fractionation, compartmentalization, and HL structure and function of mitochondria, chloroplasts, ER and Golgi.NotesQuestions 8Flashcards 15
- 3Cell specialization Spec B2.3IB Biology B2.3: differentiation, stem cells, niches and potency, cell size and SA:V, and HL adaptations of pneumocytes, muscle cells and gametes.NotesQuestions 8Flashcards 17
Whole topic
When you have done the subtopics: test yourself on everything, or print the lot.