Which of the Following Is a True Statement About Nitrogen

question 58

Multiple Choice

Which of the following is a True statement about nitrogen fixation in root nodules?

• A)The plant contributes the nitrogenase enzyme.
• B)The process is relatively inexpensive in terms of ATP costs.
• C)Leghemoglobin helps maintain a low O2 concentration within the nodule.
• D)The process tends to deplete nitrogen compounds in the soil.
• E)The bacteria of the nodule are autotrophic.

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Definitions:

Buoyancy

The force that causes objects to float in a fluid by displacing a volume of fluid whose weight equals the object's weight.

Adaptation

The process by which organisms become better suited to their environment through genetic changes over generations.

Gravity

The natural force of attraction exerted by a celestial body, such as Earth, upon objects, drawing them toward its center.

Animal Movement

The various motions accomplished by animals as a result of muscle contraction.