Explain why most iron-oxidizing bacteria are obligately acidophilic, and discuss some of the environments where these organisms are found

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Answer: Oxidation of iron at a low pH does not create high yields of energy. However, to compensate for the oxidation of iron, a reduction must also occur to balance the reaction. At a low pH, protons can be subsequently reduced. Bacteria with this metabolic capacity are prevalent in acid-polluted and coal-mining environments.

Biology & Microbiology

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Indicate whether each statement is true or false and then provide the explanation for why the statements are either true or false. The distance travelled by the signaling molecule to the responding cell varies tremendously depending on the signal

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Biology & Microbiology

A nonprotein component of an enzyme that is usually a metal ion or small organic molecule is called a(n) ________

Fill in the blank with correct word.

Biology & Microbiology

The bases in DNA are complementary. A always binds with

A. G. B. T. C. C. D. A. E. U.

Biology & Microbiology

How could lipids lead to a myocardial infarction?

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Biology & Microbiology