Osmosis Required Practical

It helps plants absorb nutrients from the soil.

It allows plants to photosynthesize more efficiently.

It prevents plants from losing water to the environment.

It enables plants to grow faster.

Balance

Ruler

Boiling tube

Paper towel

To avoid contamination of the experiment

To prevent accidents involving equipment

To keep the lab clean

To improve visibility

Cut all pieces into 2cm ensuring they are the same size

Add 10cm³ of the corresponding salt solution

Wait for 30 minutes

Tidy away equipment not in use

Wash them with water

Dab them gently with a paper towel

Leave them to dry naturally

Weigh them immediately

Scalpel

Cork borer

Ruler

Top pan balance

Volume of solution in each boiling tube

Concentration of sucrose solution

Length of potato cylinders

Time potato cylinders are left in solution

Only the mass

Only the length

Both mass and length

Neither mass nor length

0.2 mol/dm³

0.4 mol/dm³

0.6 mol/dm³

0.3 mol/dm³

Dependent Variable, Step-by-Step Instructions, Control Variables, Repeat and calculate a mean

Independent Variable, Control Variables, Equipment, Guess the results

Step-by-Step Instructions, Use random equipment, Repeat and calculate a mean, Forget units

Dependent Variable, Ignore instructions, Control Variables, Check numbers only

They increase the mass of plant tissue.

They decrease the mass of plant tissue.

They have no effect on the mass of plant tissue.

They can either increase or decrease the mass depending on the concentration.