In what way are members of the genus Archaeoglobus similar to methanogens, and how do they differ from other extreme thermophiles?

Your microorganism produce black color in peptone iron agar grown at 37 degrees Celcius overnight.Which enzyme would you predict the this microorganism has ? a)tryotophanase b)gelatinase c)desulfhydrase d)urease e)Cytochrome C

Given what is known about humans, why is it unlikely that a thermophile or a psychrophile would be a human pathogen?

A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules. How does this organism make ATP?

Which of the following is an example of a chemoorganoheterotroph? A.) An organism that gets its energy for ATP from the sun and its C from other organisms B.) An organism that gets its energy for ATP from organic molecules and its C from other organisms C.) An organism that gets its energy for ATP from the sun and synthesizes C-C bonds from simple molecules D.)An organism that gets its energy for ATP from inorganic molecules and synthesizes C-C bonds from simple molecules

Which organism(s) would likely be classified as an acidophile?

What is the effect of pH on microbe's growth? Define halophiles, osmotolerant and barophiles.

if a bacterium lacks cytochrome C oxidase, does that make the bacterium an anaerobe? Explain?

Organısms that grow at temperatures in excess of 100 C are known as A) O thermophiles ) O extreme halophiles C) O psychrophiles D) O hyperpsychrophiles E) O hyperthermophiles.

Why do most iron-oxidizing bacteria grow at anacidic pH?