Nitrogen-Fixing Bacteria in the Roots of Soybeans Help Provide a Source

question 67

Multiple Choice

Nitrogen-fixing bacteria in the roots of soybeans help provide a source of nitrogen to the plants and,in exchange obtain food from the plants.Which reaction can these bacteria catalyze?

• A) nitrogen gas (N₂) to nitrate (NO₃)
• B) nitrogen gas (N₂) to ammonium (NH₄)
• C) nitrate (NO₃) to nitrogen gas (N₂)
• D) nitrate (NO₃) to ammonium (NH₄)
• E) ammonium (NH₄) to nitrate (NO₃)

---

Definitions:

Intrinsic Rewards

Satisfaction a person receives in the process of performing a particular action or activity, coming from within the individual rather than from external rewards.

Performance

The act, process, or capability of performing actions efficiently and effectively according to set standards.

Occurrence

An event that happens or takes place.

Chance

The occurrence of events in the absence of any deliberate design or predictable cause.