Osmosis Required Practical
Measuring the effect of sugar solutions on plant tissue (like potato or onion) is a core Biology practical.
Why do we dry the potato discs before weighing them?
What is Osmosis Required Practical?
"The osmosis practical is a standard experiment to observe the movement of water in and out of plant cells using different solute concentrations."
Which term correctly completes this GCSE Biology equation or calculation statement? A ____ is the total of results ÷ number of results
Which term correctly completes this GCSE Biology equation or calculation statement? ____ change = (final − initial) ÷ initial × 100
Which option correctly completes the statement? In photosynthesis practicals, moving a lamp ____ increases light intensity
Which answer best completes the statement? Control variables are kept the same for a ____ test
Practical Methods
Cut equal-sized cylinders of potato and weigh them.
Place in different concentrations of sugar solution for a set time.
Dry them, weigh again, and calculate percentage change in mass.
Percentage change = ((Final Mass - Initial Mass) / Initial Mass) x 100.
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