Decomposers


 
 
Concept Explanation
 

Decomposers

Decomposers: Bacteria and fungi are very small organisms that cannot be seen with the naked eye. These are known as micro-organisms. They are consumers that feed mainly on the dead remains of plants & animals.

The nutrients that producers (green plants) absorbs from the soil are passed on to all the consumers. When a producer or a consumer dies, bacteria and fungi act to break down or decompose the dead material of its body into the nutrient substances it was made up of. These nutrients return to the soil from where they came and mix with it. Therefore bacteria and fungi are known as decomposers.

Thus, the decomposers serve a very useful purpose of maintaining the balance of nutrients in the soil by returning the nutrients to it. Nature recycles the nutrients that have been taken from the soil. This is very important, since the total amount of these nutrients does not change.

Sample Questions
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Question : 1

When a producer or a consumer dies,______________________ act to break down or decompose the dead material of its body into the nutrient substances it was made up of.

Right Option : C
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Question : 2

Is it correct to burn the huge heaps of dried leaves that are collected at various places ?

Right Option : B
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Question : 3

Which of the following are correct :

(a) Bacteria and fungi are very small organisms that cannot be seen with the naked eye.

(b) Decomposers are consumers that feed mainly on the dead remains of plants & animals.

(c) The decomposers serve a very useful purpose of maintaining the balance of nutrients in the soil by returning the nutrients to it.

Right Option : D
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