Which of the following is not a characteristic of endospores? Select one: a. Ric

Question

Which of the following is not a characteristic of endospores?

Select one:

a. Rich in calcium and dipicolinic acid

b. Difficult to stain

c. Susceptible to UV radiation

d. Low water content

e. High refractivity

You are asked to determine whether an unknown bacterial sample contains a gram-positive or gram-negative species. Because you are all out of Gram staining reagents, you decide to analyze the chemical components of the cell wall. The presence of which of the following components would serve as a marker for a gram-negative bacterium?

Select one:

a. N-acetylmuramic acid

b. Lysine

c. Teichuronic acid

d. Teichoic acid

e. Diaminopimelic acid

A packet of cells would be formed by cocci dividing:  

Select one:

a. along a single axis.

b. along two perpendicular axes.

c. along three perpendicular axes.

d. along four perpendicular axes.

e. randomly.

Explanation / Answer

1.C.Susceptible to UV radiation.

2.d. Teichoic acid

3.b. along two perpendicular axes.

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