Exam 6: Growth and Culturing of Bacteria

Organisms with special nutritional needs are said to be _____.

Where would you expect to find a barophile?

Most bacteria reproduce by:

In the stationary phase of bacterial growth:

All of the following are ways microorganisms adapt to limited nutrients except:

Serial dilutions are used to:

Which of the following bacterial counting techniques relies on a statistical estimate to determine the number of bacteria in a culture?

Halophiles require an environment with a high concentration of ________ for optimal growth.

Which of the following is most likely to have evolved to live in the deep layers of mud,where there is a complete lack of free oxygen?

Most bacteria:

This phase decreases at a logarithmic rate.

When a bacterial cell divides into two new cells,the new cells are called:

A living,growing culture whose purpose is to maintain a pure culture of an organism indefinitely is a _____.

Which of the following statements about bacterial growth is false?

Draw and label a standard growth curve. Describe each of the 4 phases. Why do you think bacteria do not continue to double indefinitely? You sample a culture that has reached the fourth phase after 2 days,can you think of one reason why the culture would begin to increase on day 4?

Sporulation occurs in:

A bacterial culture can be kept in the log phase of growth indefinitely with the help of a/an:

Which of the following counting techniques does not differentiate between live and dead bacterial cells in a culture?