1. The effect of sugar or salt solutions on the mass of plant tissue
Definition of osmosis:
Draw a diagram of the apparatus set up to get the results below:
What errors could be in this experiment and how could you avoid them?
Bullet point a basic method: 4
List the equipment needed to carry out this experiment: 5
Required Practical 3:
The effect of sugar or salt solutions on the mass of plant tissue 4 6 8
Why do you blot the potatoes?:
Sketch a graph of the results and explain what is happening at each stage. 7 7
A table to show:
Add a title to the table:
Calculate the change in mass:
What is the equation for percentage change?
Complete the percentage change column:
Why do you need to calculate percentage change? 6
How could you calculate rate of water uptake? 7 8