Transport across cell membranes - diffusion, osmosis, active transport, co-transport, practicals

AQA A Level Biology topic 2.3 Transport across cell membranes
- fluid-mosaic model of membrane structure
- passive transport: diffusion, facilitated diffusion, osmosis
- active transport and co-transport
- factors affecting rate of transport and adaptations
- Required practical 3: Production of a dilution series of a solute to
produce a calibration curve with which to identify the water potential
of plant tissue.
- Required practical 4: Investigation into the effect of a named
variable on the permeability of cell-surface membranes.

[hafsaali]

Can we please have more of these they are so useful!!

[chloerobinson]

Can you please do videos on each topic throughout the whole year 12 and 13 please find these helpful but got exams very soon and need help

[nafisayo]

Very helpful thank you. Plz make more its very very helpful. I have my AS exams this May

[sofiaabdolvand]

Facilitated diffusion take place by Carrer and channel pr ?or just Chanel pr?

[Terry-xuzu]

Hi Olivia I just brought the 25 pound notes but all I got was command words will it be sent later or be posted thank you

[freya]

lipids aren't soluble in water...