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:

Raw Sensations

Relates to the basic, immediate experiences that arise from stimuli affecting sensory receptors, before undergoing significant mental processing.

Sense of Smell

A sensory system allowing for the perception of odors through the detection of chemical molecules in the air.

Physical Harm

Injury or damage inflicted on a person's body, potentially resulting in pain or impairment.

Gate-Control Theory

A theory suggesting that the spinal cord contains a neurological "gate" that either blocks or allows pain signals to continue on to the brain.