Exam 7: Growth and Culturing of Bacteria

A bacterial population grows most rapidly during ________ phase.

Sabourard's agar has a low pH which encourages the growth of molds and discourages the growth of bacteria.Sabourard's agar could best be described as being:

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

Most bacteria reproduce by:

Which type of cell will generally shift to aerobic metabolism when oxygen is available but will carry on fermentation otherwise

Most bacteria:

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

In the stationary phase of bacterial growth:

The toxic effects of the byproducts of oxygen metabolism are reduced by which of the following

Bacteria that ferment lactose grow as red colonies on MacConkey's agar while those that do not ferment lactose are transparent.MacConkey's agar can best be described as being:

Sporulation usually occurs in response to a/an _____.

A candle jar would be used for growing:

______ techniques must be strictly adhered to prevent the accidental contamination of stock cultures.

This phase decreases at a logarithmic rate.

Within a bacterial endospore,the spore is most closely surrounded by the _____.

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

Which of the following is considered a trace element

Which of the following is not one of the phases of bacterial growth

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

Which of the following statements about liquid media and agar is false