These comprehensive video lessons help IB Biology students Standard Level (SL) and Higher Level (HL) understand and master the essential concepts needed for success in IB Exams. Each video focuses on B2.1 Membranes and membrane transport and is aligned with the IB Biology syllabus, ensuring focused learning on cell biology, genetics, and ecology. Students can watch and rewatch anytime, anywhere, perfect for visual learners, reinforcing complex concepts, and understanding IB methodology. By using RevisionDojo's video lessons consistently, learners build deep understanding and enter the exam with confidence.
Biology B2.1.1
B2.1.1 Lipid bilayers as the basis of cell membranes
Biology B2.1.2
B2.1.2 Lipid bilayers as barriers
Biology B2.1.3
B2.1.3 Simple diffusion across membranes
Biology B2.1.4
B2.1.4 Integral and peripheral proteins in membranes
Biology B2.1.5
B2.1.5 Movement of water molecules across membranes by osmosis and the role of aquaporins
Biology B2.1.6
B2.1.6 Channel proteins for facilitated diffusion
Biology B2.1.7
B2.1.7 Pump proteins for active transport
Biology B2.1.8
B2.1.8 Selectivity in membrane permeability
Biology B2.1.9
B2.1.9 Structure and function of glycoproteins and glycolipids
Biology B2.1.10
B2.1.10 Fluid mosaic model of membrane structure
Biology B2.1.11
B2.1.11 Relationships between fatty acid composition of lipid bilayers and their fluidity (HL)
Biology B2.1.12
B2.1.12 Cholesterol and membrane fluidity in animal cells (HL)
Biology B2.1.13
B2.1.13 Membrane fluidity and the fusion and formation of vesicles (HL)
Biology B2.1.14
B2.1.14 Gated ion channels in neurons (HL)
Biology B2.1.15
B2.1.15 Sodium–potassium pumps as an example of exchange transporters (HL)
Biology B2.1.16
B2.1.16 Sodium-dependent glucose cotransporters as an example of indirect active transport (HL)
Biology B2.1.17
B2.1.17 Adhesion of cells to form tissues (HL)