Multiple Choice
Why must microhematocrit tubes be processed in pairs during a hematocrit determination?
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1. Introduction to Microbiology
Introduction to Microbiology
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Which of the following processes is also known as ammonification?
A
Conversion of organic nitrogen into NH_3
B
Reduction of NO_3^- to N_2 gas
C
Oxidation of NH_3 to NO_2^-
D
Fixation of atmospheric N_2 into organic compounds
Verified step by step guidance1
Understand the nitrogen cycle and the different processes involved in nitrogen transformation in the environment.
Identify that ammonification refers to the process where organic nitrogen compounds (such as proteins and nucleic acids) are broken down by microorganisms to release ammonia (NH_3).
Recognize that the conversion of organic nitrogen into NH_3 is the key characteristic of ammonification.
Compare the other options: reduction of NO_3^- to N_2 gas is denitrification, oxidation of NH_3 to NO_2^- is nitrification, and fixation of atmospheric N_2 into organic compounds is nitrogen fixation.
Conclude that ammonification specifically describes the conversion of organic nitrogen into ammonia (NH_3).
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