Chapter EH, Problem 42R

Solution

Interpretation : Fertilizers mimic the action of nitrogen-fixing bacteria to be described.

Concept Introduction : Although nitrogen makes up roughly 78% of the atmosphere on Earth, it exists in a form that cannot be utilized by plants.

Fertilizers mimic the action of nitrogen-fixing bacteria with nitrogen and other nutrients provident.

Some bacteria in the soil break the triple bond of the nitrogen molecule to transform nitrogen gas from the air into a form that can be used.

This produces a type of nitrogen that plants can absorb through their roots.

To construct cellular components, take part in photosynthesis, and efficiently transmit energy, plants need nitrogen.

Commercial fertilizers provide nitrogen and other minerals in ways that are simple for plants to absorb, simulating the activity of nitrogen-fixing bacteria.