back to directory
NEET BIOLOGYEcosystemMedium

Question

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

Statement I is incorrect but Statement II is correct.

B

Both Statement I and Statement II are correct.

C

Both Statement I and Statement II are incorrect.

D

Statement I is correct but Statement II is incorrect.

Step-by-Step Solution

Statement I is correct as decomposers (bacteria and fungi) break down complex organic matter (detritus) into simpler inorganic substances like carbon dioxide, water, and nutrients . Statement II is incorrect because the decomposition rate is actually slower if the detritus is rich in lignin and chitin; it is quicker if rich in nitrogen and water-soluble substances like sugars .

Exam Context & Concepts Covered

This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Ecosystem. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

BIOLOGYEcosystemstatementsstatementdecompositionprocessdetritus

More Ecosystem Questions

View all

Given below are two statements: Statement I: The primary source of energy in an ecosystem is solar energy. Statement II: The rate of production of organic matter photosynthesis in an ecosystem is called net primary productivity (NPP). In the light of the above statements, choose the most appropriate answer from the options given below.

A.Statement I is correct but statement II is incorrect
B.Statement I is incorrect but statement II is correct
C.Both statement I and statement II are correct
D.Both statement I and statement II are incorrect
MediumSolve

Given below are two statements: Statement I: In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers. Statement II: Ecosystems are exempted from 2nd law of thermodynamics. In the light of the above statements, choose the most appropriate answer from the options given below:

A.Statement I is correct but statement II is incorrect
B.Statement I is incorrect but statement II is correct
C.Both statement I and statement II are correct
D.Both statement I and statement II are incorrect
MediumSolve

Consider the pyramid of energy of an ecosystem given below : If T4 is equivalent to 1000 J, what is the value of T1?

A.100J
B.400J
C.10000J
D.1000000J
MediumSolve

Which of the following is not correct regarding the decomposition of wastes?

A.1. (b) and (c) only
B.2. (c), (a) and (d) only
C.3. (c) and (d) only
D.4. (c), (d) and (e) only
MediumSolve

Which of the following ecological pyramids is generally inverted?

A.Pyramid of biomass in a sea
B.Pyramid of numbers in grassland
C.Pyramid of energy
D.Pyramid of biomass in a forest
MediumSolve

Which of the following statements is incorrect?

A.1. Biomass decreases from first to fourth trophic level.
B.2. Energy content gradually increases from first to fourth trophic level.
C.3. Number of individuals decreases from first trophic level to fourth trophic level.
D.4. Energy content gradually decreases from first to fourth trophic level.
MediumSolve

Who is known as the father of Ecology in India?

A.Ram Udar
B.Birbal Sahni
C.S. R. Kashyap
D.Ramdeo Misra
MediumSolve

In an ecosystem, if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m−2) yr−1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?

A.x
B.10x
C.100x/3x
D.x/10
MediumSolve

This neet biology practice question is part of the TopperSquare free question bank. TopperSquare offers 15,000+ chapter-wise NEET MCQs across Physics, Chemistry, and Biology with detailed step-by-step explanations, full mock tests, NEET PYQs (2010–2024), and an AI-powered performance analytics dashboard. browse all neet practice questions → · practice biology sets →

Given below are two statements: Statement I: Decom... | NEET MCQ | TopperSquare