A Bacterium Capable of Producing Methane and Water from Carbon

question 36

Multiple Choice

A bacterium capable of producing methane and water from carbon dioxide and hydrogen performs a type of metabolism called ________ and, given its sources of electrons, it is a ________.

• A) methanogenesis; chemolithotroph
• B) respiration; heterotroph
• C) fermentation; chemoorganotroph
• D) carbon fixation; phototroph
• E) sulfur bacterium; chemolithotroph

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Definitions:

Chi-squared Curve

Describes the distribution of a chi-squared statistic, used in hypothesis testing to determine how well observed data fit with expected data.

Degrees of Freedom

The number of independent values or quantities that can vary in the analysis without violating any constraints.

F Distribution

A probability distribution used in statistics to compare variances among samples, often employed in the analysis of variance (ANOVA).

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or calculation.