NEET BIOLOGY

ECOLOGY

ECOSYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Assimilation refers to
A
the absorption of nitrogen into plants and animals
B
the changing from a liquid to a gas
C
the variety of organisms within an ecosystem
D
the pathway from abiotic to biotic
Explanation: 

Detailed explanation-1: -Nitrogen assimilation is the process by which inorganic nitrogen compounds are used to form organic nitrogen compounds such as amino acids, amides, etc. Plants and other organisms, which cannot utilise nitrogen molecules directly, depend on the absorption of nitrogen as nitrates or ammonia.

Detailed explanation-2: -Assimilation. Assimilation is the process by which plants and animals incorporate the NO3-and ammonia formed through nitrogen fixation and nitrification. Plants take up these forms of nitrogen through their roots, and incorporate them into plant proteins and nucleic acids.

Detailed explanation-3: -This process is called nitrification. 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-4: -Plant assimilation occurs through the process of photosynthesis, in which plants acquire nutrients for growth and development through the conversion of light energy, water, and carbon dioxide into chemical energy in the form of sugars.

Detailed explanation-5: -nitrogen cycle Nitrates and ammonia resulting from nitrogen fixation are assimilated into the specific tissue compounds of algae and higher plants. Animals then ingest these algae and plants, converting them into their own body compounds.

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