contestada

Some species of Salmonella bacteria cause food poisoning. On average
these cells have a width of 2μm. Assuming the bacteria fit side by side,
calculate: (a) the number of bacteria that would fit into a gap of 1mm
(3 marks). (b) the size, in mm, of a colony of 20,000 Salmonella bacteria
lined up end to end. (2 marks)