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Explaining Bacterial Growth


A scientist decides to culture a species of bacteria in his laboratory for further study, he introduces a small number of the cells to a petri dish prepared with all the nutrients the species require for growth and reproduction.

Below is a graph of the bacterial population.

Which of the following analyses of the graph is MOST accurate?

Created for Albert.io. Copyright 2016. All rights reserved.


The scientist transferred some of the bacteria to a new petri dish at Hour 1.


The bacteria had an excess of space and nutrients at Hour 2.


The carrying capacity of the petri dish was exceeded at Hour 3.


The petri dish was contaminated with a competing species of bacteria at Hour 5.