Some Normally Aerobic Bacteria, Which Include Species of the Genera

question 119

Multiple Choice

Some normally aerobic bacteria, which include species of the genera Bacillus and Pseudomonas, use nitrate (NO₃^-) as an electron acceptor in place of oxygen if they are kept under anaerobic conditions.Which of the following statements concerning these ecologically important bacteria is false?

• A) They act as denitrifiers.
• B) They release nitrogen to the atmosphere as nitrogen gas (N₂).
• C) Without their conversion of soil nitrogen to atmospheric gas, soil nitrogen would leach into lakes and rivers.
• D) They convert ammonia (NH₃) to nitrate (NO₃^-), which is available to plants.
• E) They convert nitrate ions to nitrogen gas (N₂).

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Definitions:

Ergs

Basic innate drives or impulses that motivate behavior, often used in the context of psychoanalytic theory.

Attitudes

Enduring sets of beliefs or feelings about people, objects, or ideas that predispose individuals to respond in certain ways.

Learned Helplessness

A condition in which a person suffers from a sense of powerlessness, arising from a traumatic event or persistent failure to succeed, characterized by the belief that one's actions have no effect on outcomes.

Learned Optimism

The concept that one can develop a more positive outlook through cognitive behavioral techniques, as proposed by psychologist Martin Seligman.