1 Identify whether wounds covered in film or ordinary plasters developed the largest bacterial population
2 Describe the shape of the graphs and explain what these graphs show about the
population of bacteria for the film and the ordinary plaster.
1 ordinary plaster
2 The graphs begin at the same point, and rises in a curve-like manner until the peak at Days 3
and 4, before decreasing rapidly until Day 6, and tailing off to Day 8.
These graphs show that initially the bacterial growth is slow in the first day, before increasing
rapidly until Days 3 and 4. The bacterial population decreases rapidly until Day 6, and more
slowly until Day 8.