NEET-UG Biology

Decomposition steps and what speeds them up — practice questions

7 questions in the bank on this idea. Below are 7 of them, exactly as they appear in a test.

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Question 1 · difficulty L1 · recall
Breaking detritus into smaller particles by detritivores:
- A. leaching
- B. mineralisation
- C. humification
- D. fragmentation
Question 2 · difficulty L1 · recall
Formation of a dark amorphous, resistant organic substance in soil:
- A. humification
- B. leaching
- C. mineralisation
- D. fragmentation
Question 3 · difficulty L1 · recall
Loss of water-soluble inorganic nutrients from detritus into deeper soil layers:
- A. catabolism
- B. fragmentation
- C. humification
- D. leaching
Question 4 · difficulty L1 · recall
Microbial enzymatic conversion of detritus into simpler substances:
- A. leaching
- B. fragmentation
- C. catabolism
- D. predation
Question 5 · difficulty L1 · recall
Release of inorganic nutrients from organic matter:
- A. grazing
- B. fragmentation
- C. humification
- D. mineralisation
Question 6 · difficulty L2 · understanding
Which decomposition step converts detritus into smaller particles?
- A. Humification
- B. Fragmentation
- C. Mineralisation
- D. Photosynthesis
Question 7 · difficulty L4 · analysis
Leaf litter decomposes much faster in a warm, moist site than in a cold, dry site. What best explains this difference?
- A. Moisture prevents microbial growth
- B. Cold and dryness always accelerate microbial enzymes
- C. Warmth and moisture increase decomposer activity
- D. Temperature has no effect on decomposition

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