Q47 / 200 · NEET 2022 (Phase 1) · Botany

Given below are two statements:

Statement I: Decomposition is a process in which the detritus is degraded into simpler substances by microbes.

Statement II: Decomposition is faster if the detritus is rich in lignin and chitin.

In light of the above statements, choose the correct answer from the options given below:

  • A
    Both Statement I and Statement II are incorrect
  • Correct answer
    B
    Statement I is correct but Statement II is incorrect
  • C
    Statement I is incorrect but Statement II is correct
  • D
    Both Statement I and Statement II are correct

Solution

The decomposers break down complex organic matter into inorganic substances like carbon dioxide, water and nutrients and the process is called decomposition.
Dead plant remains such as leaves, bark, flowers and dead remains of animals, including animal faecal matter, constitute detritus, which is the raw material for decomposition.

During decomposition, the detritus is digested by the enzymes released by microbes, like bacteria, fungus, etc. Decomposition is faster in humid condition and on cellulosic material.

Hence, the correct answer is option: 'B'.

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