Decomposition
Decomposition: Overview
This topic covers concepts, such as Decomposition, Decomposers, Detritus, Detritivores, Fragmentation of Detritus during Decomposition, Leaching during Decomposition, Catabolism during Decomposition, Humification during Decomposition, etc.
Important Questions on Decomposition
Identify the process in which water soluble inorganic nutrients are precipitated as unavailable salts
Which of the following is not a proper description of decomposition process?
Decomposers like fungi and bacteria are
(i) Autotrophs
(ii) Heterotrophs
(iii) Saprotrophs
(iv) Chemo-autotrophs Choose the correct answer
Which of the following statement regarding decomposition is false
In a particular climatic condition, decomposition rate is slower if
Among biotic components, the micro consumers are called _____.
Which of the following factors favour faster decomposition of detritus?
What would happen if all the bacteria and fungi of the world are destroyed?
Choose the incorrect property with respect to characteristics of humus.
Read the below given statements with respect to three important steps of decomposition: fragmentation, leaching and catabolism. Select the correct option.
(i) Detritivores {e.g., earthworm) breakdown detritus into smaller particles.
(ii) Water soluble inorganic nutrients go down into soil horizon and get precipitated as unavailable salts.
(iii) Decomposers (e.g., bacteria and fungi) secrete digestive enzymes and degrade detritus into simpler inorganic substance.
| Leaching | Fragmentation | Catabolism | |
|---|---|---|---|
| (i) | (ii) | (iii) | |
| (iii) | (ii) | (i) | |
| (ii) | (i) | (iii) | |
| (ii) | (iii) | (i) |
Which all statement(s) are true for reducers?
a. They are natural scavengers.
b. Replenish the soil naturally with minerals.
c. They are top carnivores.
Which of the following can accelerate the rate of decomposition of the detritus?
Which among the following group organisms can be referred as osmotrophs?
Which of the following is a characteristic feature of rural development?
What was the main reason for the mass displacement during the partition?
What year did the partition of India take place?
Which of the following is a major cause of land degradation?
What is the process called when debentures are converted into shares or new debentures?
