IB Biology Topic B2.1: Membranes and Membrane Transport Notes

B2.1.1 Lipid bilayers as the basis of cell membranes

5 minute read

B2.1.2 Lipid bilayers as barriers

4 minute read

B2.1.3 Simple diffusion across membranes

7 minute read

B2.1.4 Integral and peripheral proteins in membranes

5 minute read

B2.1.5 Movement of water molecules across membranes by osmosis and the role of aquaporins

4 minute read

B2.1.6 Channel proteins for facilitated diffusion

5 minute read

B2.1.7 Pump proteins for active transport

6 minute read

B2.1.8 Selectivity in membrane permeability

6 minute read

B2.1.9 Structure and function of glycoproteins and glycolipids

5 minute read

B2.1.10 Fluid mosaic model of membrane structure

7 minute read

B2.1.11 Relationships between fatty acid composition of lipid bilayers and their fluidity (HL)

4 minute read

B2.1.12 Cholesterol and membrane fluidity in animal cells (HL)

5 minute read

B2.1.13 Membrane fluidity and the fusion and formation of vesicles (HL)

7 minute read

B2.1.14 Gated ion channels in neurons (HL)

9 minute read

B2.1.15 Sodium–potassium pumps as an example of exchange transporters (HL)

5 minute read

B2.1.16 Sodium-dependent glucose cotransporters as an example of indirect active transport (HL)

4 minute read

B2.1.17 Adhesion of cells to form tissues (HL)

4 minute read