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12.1.3.1 explain the mechanism of various types of transport of substances through the cell membrane
Diffusion, Osmosis, Facilitated Diffusion, Active Transport, Endocytosis, Exocytosis
pg 79-89
pg 79-89
12.1.3.3 determine the role of active transport in maintaining the membrane potential
Membrane potential: resting and action potential (depolarization, repolarization and hyperpolarization). The role of the sodium- potassium pump in maintaining the membrane potential.
12.1.3.2 explain the mechanism of active transport using the example of a sodium potassium pump
The mechanism of active transport is based of the example of the sodium potassium pump. Protein pumps: proton, sodium-potassium and calcium. Co-transport. Transfer of macromolecules and particles through the membrane: endocytosis and exocytosis
pg 330-337
pg 330-337
12.1.3.4 explain the essence of the water potential
Water potential. Osmotic and hydrostatic potentials. Water flow into the plant cell.
12.1.3.5 explain the essence of the symplastic, apoplastic, vacuolar pathways of transport of substances
Symplastic, apoplastic, vacuolar transport routes and their significance. The role of Casparian strips when water moves in root. Transport of water and ions in xylem. Guttation.
12.1.3.6 explain the mechanism of translocation of substances applying the mass flow hypothesis
Translocation of organic substances in phloem. Mass flow hypothesis by Munch and current under pressure. Sieve tubes.
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