Microbial Growth Curves in a Closed System Practice Problems

In the indirect method of quantifying microbial growth, which of the following is measured:

What is the period during which most secondary metabolites are produced known as?

During the lag phase, bacterial cells primarily:

Which of the following is most suitable for illustrating bacterial growth on a graph?

What happens during the lag phase in a bacterial culture?

Which of the following sums up the key difference between the two processes—bacterial growth and reproduction—correctly?