What Is Denitrification

question 59

Multiple Choice

What is denitrification?

• A) conversion of nitrate or nitrite to N₂ by anaerobic respirers
• B) oxidation of NHto nitrate or nitrite by lithotrophs
• C) conversion of N₂ to NH
• D) all of the above
• E) none of the above

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Definitions:

π Molecular Orbital

A molecular orbital formed by the lateral overlap of atomic orbitals, characterized by an electron distribution above and below the plane of the atomic centers.

σ Molecular Orbital

A symmetrical molecular orbital formed by the head-on overlap of atomic orbitals, where electron density is concentrated along the axis connecting nuclei.

Uracil

A nitrogen-containing base found in RNA which pairs with adenine during the formation of RNA strands.

Hybridization

The process or model by which atomic orbitals mix and form new hybrid orbitals of equivalent energies, explaining the bonding and shape in molecules.