QUESTION 3 3.1 The diagram below shows a cholera bacterium. It has been magnified 50 000 times A В 1 mm - 1000um 3.1.1 Name structure C. (1) 3.1.2 State the function of structure C. 3.1.3 Calculate the actual width of the cholera bacterium between points X and Y. Give your answer in micrometers (um). Show all working (2)