Biology Required Practicals
Investigate the effect of a range of concentrations of salt or sugar solutions on the mass of plant tissue.
Investigate osmosis in potatoes.
00:00 Preparing potato cylinders
03:17 Adding sucrose solutions
05:15 Obtaining results
09:55 Analysing data
Required Practical: Effects of Osmosis on Plant Tissue
Check out the sample question and solution on Sample Assessment Material (page 23), paper 1BI0/1BH and 1BIO/1BF.
Diffusion, active transport and osmosis can be used to move substances into and out of cells. A student was investigating osmosis in potato cubes.
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