1 International Baccalaureate resources Search within results Go How ratings and recommendations work Apply Filter resourcesClear all filtersLevelClear filter International Baccalaureate Subject Biology TopicClear filter Biology SL chapter 2.4 (Membranes) Resources Flashcards Multi-tool Biology SL chapter 2.4 (Membranes) International Baccalaureate, Biology 15 flashcards Search again