GENERAL KNOWLEDGE

GK

ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The sequence of ease of decomposition of organic compounds in soil is
A
Lignin - Hemicellulose - Starch - Crude protein - Fat
B
Crude protein - Starch - Fat - Lignin - Hemicellulose
C
Starch - Crude protein - Hemicellulose - Fat - Lignin
D
Fat - Starch - Lignin - Hemicellulose - Crude protein
Explanation: 

Detailed explanation-1: -At first, the easily decomposable substances like sugars, starches and water soluble proteins are acted upon by the microorganisms and decomposition and digestion is rapid. Crude protein is next in order, followed by hemicelluloses.

Detailed explanation-2: -Decomposition is the process of breaking complex organic matter into simpler inorganic matter. There are five steps of decomposition. These are fragmentation, leaching, catabolism, humification, and mineralization.

Detailed explanation-3: -It is also universally recognized that there are three main processes through which decomposition occurs: (1) leaching of soluble compounds into the soil, (2) fragmentation of litter into smaller sizes and (3) catabolism by decomposer organisms (i.e. micro-organisms and fauna).

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