Home
Class 12
BIOLOGY
Select the incorrect statement w.r.t dec...

Select the incorrect statement w.r.t decomposition.
(a) Bacterial and fungal enzyme degrade detritus into simpler inorganic substances in a process is called catabolism.
(b) Humans is less resistant to microbial action and undergones decomposition at an extremely slow rate.
(c) By the process of leaching , watersoluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts.
(d) Decomposition is largely an oxygen requiring process.

A

Bacterial and fungal enzyme degrade detritus into simpler inorganic substances in a process is called catabolism.

B

Humans is less resistant to microbial action and undergones decomposition at an extremely slow rate.

C

By the process of leaching , watersoluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts.

D

Decomposition is largely an oxygen requiring process.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze each of the statements provided regarding decomposition and identify the incorrect one. ### Step-by-Step Solution: 1. **Understanding Decomposition**: Decomposition is the process by which complex organic matter is broken down into simpler inorganic substances. This process is essential for nutrient cycling in ecosystems. 2. **Analyzing Option (a)**: - The statement says, "Bacterial and fungal enzymes degrade detritus into simpler inorganic substances in a process called catabolism." - This is correct. Decomposition involves bacteria and fungi breaking down organic matter (detritus) into simpler substances, which is indeed a part of catabolism. 3. **Analyzing Option (b)**: - The statement says, "Humans are less resistant to microbial action and undergo decomposition at an extremely slow rate." - This is incorrect. Humans are actually more resistant to microbial action due to various factors such as immune responses. While decomposition may occur post-mortem, it does not happen at an extremely slow rate compared to other organic materials. 4. **Analyzing Option (c)**: - The statement says, "By the process of leaching, water-soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts." - This statement is correct. Leaching refers to the process where water-soluble nutrients are washed down into the soil, where they can precipitate. 5. **Analyzing Option (d)**: - The statement says, "Decomposition is largely an oxygen-requiring process." - This is also correct. Most decomposition processes require oxygen, especially those carried out by aerobic bacteria. 6. **Conclusion**: The only incorrect statement is option (b). ### Final Answer: **The incorrect statement with respect to decomposition is (b)**: "Humans are less resistant to microbial action and undergo decomposition at an extremely slow rate."
Promotional Banner

Similar Questions

Explore conceptually related problems

Water-soluble inorganic nutrients go down into soil horizon and get precipitated an unavailable salts by the process of

Fragmentation, leaching and catabolism are some of the important steps of decomposition. Study the following statements I , ii and iii regarding these and 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 substances.

Read the following statements carefully : ( i ) primary succession is a very slow process taking thousands of years for the climax to be reached. (ii) The energy at a higher trophic level is always more than at a lower level (iii) Bacterial and fungal enzymes degrade detritus into simple inorganic substances. This process is called fragmentation . (iv ) All succession, whether taking place in water or on land, proceeds to a similar climax community : the mesic condition . Which of the two above statements are correct ?

How many of the following statements are incorrect ? (i) Decomposition is largely an anaerobic process . (ii) Fragmentation , leaching , and catabolism occur simultaneously on detritus. (iii) The vertical distribution of different species occupying different levels is called stratification . (iv) The pond is a deep water body . (v) The rate of decomposition is controlled by the chemical composition of detritus and climatic factors.