Decomposition in ecosystem - class-XI
Description: decomposition in ecosystem | |
Number of Questions: 72 | |
Created by: Arav Srivastava | |
Tags: ecosystems ecosystem ecology and environment zoology botany biology |
During the process of decomposition.
Decomposers are also called as.
Given is a table of factors affecting microbial decomposition. ($'+'$ means 'favouring' and $'-'$ means inhibiting or lowering). Select the correct option.
Decomposition is a type of ______
The rotting dead matter in the soil is called
_____________ carry out decomposition process.
.......... play a very important role in decomposition of organic matter in the soil
The rate of decomposition of hydrogen peroxide can be slowed down through
Which of these help in decomposition of organic wastes?
Which of the following gases is/are produced by decomposers during the decaying process?
The release of inorganic nutrients from the biomass is called as
The release of inorganic nutrient from the degradation of organic matter is called as
During the process of decomposition in which stage complex organic matter convert into inorganic ions and salts by fungi?
Which of the following process helps in nutrient conservation?
The decomposed organic matter is called
Breakdown of detritus into smaller particles by earthworm is a process called
Breakdown of detritus into small particles by detrivores is called
The process of breakdown of detritus by detrivores is
During the process of decomposition, in which stage complex organic matter is converted to inorganic ions and salts by fungi?
The different steps involved in the process of decomposition of detritus are
The ability to produce organic compound in unit time is
If breakdown of the detritus by detritivores is called fragmentation, then degradation of the detritus into simple inorganic substances,by bacterial and fungal enzymes is known as
Rate of decomposition is controlled by:
A large number of organic compounds can be decomposed by:
During the process of decomposition in which stage complex organic matter convert into inorganic ions and salts by fungi?
Decomposition is a type of ______.
In which treatment, microorganism decompose fine organic matter?
Bacteria which carry out decomposition of organic matter is known as
End product of 'aerobic' decomposition are:
What is 'PH' of rainwater?
Breakdown of organic matter is known as:
Lowest 'pH' measurement observed in kane and Pennsylvania, was approximately
Bacterial decomposition of organic matter, releases $NO _{2}$ into
Obnoxious ordours also pollute air due to decomposition of ____________.
Which bacteria can flourish and carry out decomposition of organic matter, both in presence and absence of oxygen?
'Aerobic' decomposition takes place in
In first stage of aerobic decomposition, carbonaceous matter is being
The plant parts when fully decomposed by microorganism and mixed in the soil is caIled as
Humus is
The slow rate of decomposition of fallen Iogs in nature is due to their
What does the term 'NPK' mean?
Humus is an example of
Microorganism act upon a dead plant to produce
Mark the correct statement
a) Microbes helps in decomposition process
b) They help in maintaining biogeochemical cycle
c) Microbes only helps in carbon cycle, they don't have any role in nitrogen cycle
Which of the following process is involved in the processing of manures?
What causes the decomposition of organic matter in soil?
Which of the following statement regarding decomposition is false?
Passage of minerals from top soil to subsoil through seepage of water is known as
Downward passage of mineral, from upper soil layer to lower soil strata is called
For recycling of materials which one is most necessary ______________.
Formation of organic matter takes place by
In the absence of decomposers, ecosystem functioning is adversely affected due to
Pheretima and its close relatives obtain nourishment from
Slow rate of decomposition of fallen logs in nature is due to
Decomposition rate is slow, if detritus is rich in
Important steps in decomposition are
Which process of decomposition is correctly described?
During the process of decomposition in which stage complex organic matter is converted into organic ions and salts by fungi
Which one of the following processes during decomposition is correctly described ?
What is the correct sequence of the microorganisms involved in the decomposition of plant residues in the terrestrial ecosystems?
Choose the correct sequences.
The slow rate of decomposition of fallen logs is due to
Which of the following factors is not limiting?
Which association below is not correct?
Which one of the following is a major link in decomposer food chain?
In summers, decomposition proceeds faster than in
50% of incident energy is lost due to:
Presence of hydrogen sulphide indicates anaerobic
The correct match among the following is
The breakdown of detritus into smaller particles by earthworm is a process called as
Earthworm is said to decompose detritus substances.
A pollution free stream within a few miles downstream of a point at which a small amount of sewage is being dumped into it. This is the result of