• Fluid mosaic model of membrane structure
• Movement of substances into and out of cells
Learning Outcomes
Candidates should be able to:
(a) describe and explain the fluid mosaic model of membrane structure, including an outline of the roles of phospholipids, cholesterol, glycolipids, proteins and glycoproteins;
(b) outline the roles of cell surface membranes;
(c) describe and explain the processes of diffusion, facilitated diffusion, osmosis, active transport,
endocytosis and exocytosis (terminology described in the IOB’s publication Biological Nomenclature
should be used; see also section 5; no calculations involving water potential will be set);
(d) [PA] investigate the effects on plant cells and the effect on animal cells of immersion in solutions of different concentrations of solutions (with different water potentials);
(e) use the knowledge gained in this section in new situations or to solve related problems.
• Movement of substances into and out of cells
Learning Outcomes
Candidates should be able to:
(a) describe and explain the fluid mosaic model of membrane structure, including an outline of the roles of phospholipids, cholesterol, glycolipids, proteins and glycoproteins;
(b) outline the roles of cell surface membranes;
(c) describe and explain the processes of diffusion, facilitated diffusion, osmosis, active transport,
endocytosis and exocytosis (terminology described in the IOB’s publication Biological Nomenclature
should be used; see also section 5; no calculations involving water potential will be set);
(d) [PA] investigate the effects on plant cells and the effect on animal cells of immersion in solutions of different concentrations of solutions (with different water potentials);
(e) use the knowledge gained in this section in new situations or to solve related problems.
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