Recall That Humans Have Drastically Increased the Amount of Ammonia

question 53

Multiple Choice

Recall that humans have drastically increased the amount of ammonia (NH₃) that is generated from nitrogen gas (N₂) , and NH₃ can be utilized by organisms to build organic compounds. What may be a result of excess human-produced NH₃?

• A)With NH₃-based fertilizers, humans can increase crop yields.
• B)Excess NH₃-based fertilizers can accumulate in lakes and rivers, disrupting aquatic habitats.
• C)Excess NH₃-based fertilizers can cause an overgrowth of plants and algae in bodies of water.
• D)All of these choices are correct.

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Definitions:

Noncyclic Electron Transport

A pathway of photosynthesis where electrons flow linearly from water to NADP+, producing NADPH, oxygen, and ATP.

Oxygen Source

A substance or process that releases oxygen as a result of a chemical reaction or biological process.

NADPH

Nicotinamide adenine dinucleotide phosphate, a coenzyme involved in anabolic reactions, such as lipid and nucleic acid synthesis, and the antioxidant defense system.

Electrons Needed

Refers to the requirement of electrons in various chemical reactions and processes, such as those in cellular respiration and photosynthesis.