1.1. A student wanted to investigate the transport of water across a partially permeable membrane. The diagram shows how the student prepared the beaker at the start of the investigation.

Complete the diagram to show what the student would observe after 15 minutes.

1.2. Explain your answer to part (a).

1.3. The student carried out a further investigation into the effect of osmosis on plant tissue. 

They cut a potato into cubes and recorded the change in mass over a 30 minute period.

The graph shows the results the student obtained from one cube of potato.

Describe and explain the trend shown on the graph.

1.4. The potato cube from the graph in part (c) had an initial mass of 2.3g.

Calculate the percentage increase that the potato cube had shown after 10 minutes.

1.5. The student repeated the investigation but with the beaker placed in a water bath at 30°C.

Draw a second line on the graph to show the trend expected from these results.

1.6. Explain your line drawn for part (e)