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Microbiology - Microbiology of Soils

Exercise : Microbiology of Soils - Section 1
  • Microbiology of Soils - Section 1
11.
The transformation of nitrates to gaseous nitrogen is accomplished by microorganisms in a series of biochemical reactions. The process is known as
nitrification
denitrification
nitrogen fixation
ammonification
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Nitrogen fixation refers to the direct conversion of atmospheric nitrogen gas into
ammonia
glucose
ATP
nitrate
Answer: Option
Explanation:
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13.
The diagnostic enzyme for denitrification is
nitrate reductase
nitrate oxidase
nitro oxidoreductase
none of these
Answer: Option
Explanation:
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14.
A heterocyst is
a type of spore
a terminally differentiated cell that fixes nitrogen
the progenitor of cyanobacterial vegetative cells
a cell that carries out oxygenic photosynthesis
Answer: Option
Explanation:
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15.
The groups of symbiotic bacteria, which have the ability to fix nitrogen
derive their food and minerals from the legume, and in turn they supply the legume with some or all of its nitrogen
grow together for a mutual benefit is called symbiosis and so these bacteria are called symbiotic nitrogen-fixing bacteria
these bacteria are from the genus, Rhizobium
all of the above
Answer: Option
Explanation:
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