AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The type of nitrogen that can be used by producers is called ____
A
free nitrogen
B
nitrous oxide
C
nitrogen gas
D
nitrogen compounds
Explanation: 

Detailed explanation-1: -Nitrate is the form of nitrogen most used by plants for growth and development.

Detailed explanation-2: -Compounds such as nitrate, nitrite, ammonia and ammonium can be taken up from soils by plants and then used in the formation of plant and animal proteins.

Detailed explanation-3: -FORMS OF NITROGEN IN FERTILIZER Fertilizers common to crop production in Indiana usually contain nitrogen in one or more of the following forms: nitrate, ammonia, ammonium or urea.

Detailed explanation-4: -Organic Nitrogen Compounds They include, for example, amines, amides, alkyl nitrates, nitrosamines, nitroarenes, and peroxyacyl nitrates. This later category includes the important compound peroxyacetyl nitrate or PAN, which is a lung and eye irritant formed in photochemical smog.

Detailed explanation-5: -Nitrogen compounds such as urea, amine and guanidine are used to denature proteins, hence their antimicrobial properties. One special form of nitrogen compounds for antimicrobial treatment is the so-called quats or quaternary ammonium salts (Coleman, 2005; Shahidi and Wiener, 2012; Windler et al., 2013).

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