Tag: ecosystem productivity and decomposition

Questions Related to ecosystem productivity and decomposition

The release of inorganic nutrients from the biomass is called as

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Production

  2. Respiration

  3. Decomposition

  4. None of the above

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Correct Option: C

The release of inorganic nutrient from the degradation of organic matter is called as

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Fragmentation

  2. Humification

  3. Mineralisation

  4. Leaching

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Correct Option: C

During the process of decomposition in which stage complex organic matter convert into inorganic ions and salts by fungi?

zoology ecosystem decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Mineralisation

  2. Catabolism

  3. Fragmentation

  4. All of these

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Correct Option: A
Explanation:

Mineralisation is a process in which complex organic matter present in humus is converted into inorganic salts and ions. It is done by the action of saprophytic fungi.

Which of the following process helps in nutrient conservation?

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Mineralisation

  2. Immobilisation

  3. Leaching

  4. Nitrification

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Correct Option: B
Explanation:

Immobilization is the conversion of inorganic compounds to organic compounds by microorganisms or plants, by which it is prevented from being accessible to plants. Immobilization is the opposite of mineralization. Plants utilize minerals in inorganic form. Hence, immobilization helps in nutrient conservation.

So, the correct answer is 'Immobilization'.

The decomposed organic matter is called

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Callose

  2. Callus

  3. Litter

  4. Humus

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Correct Option: D
Explanation:

Decomposition is the process of breaking of complex organic matter into simpler inorganic matter. There are five steps of decomposition. These are fragmentation, leaching, catabolism, humification and mineralization. Fragmentation is the process of breaking of detritus into small pieces by detrivores. Leaching is the process of releasing nutrients in the water and seeping into the soil. Catabolism is the process of breaking down of complex molecules into the simpler molecules. Humification is the process of formation of dark colored humus on the soil. The decomposed organic matter is called as humus. Mineralization is the process of degradation of the hummus to release inorganic nutrients.

Thus, the correct answer is 'Humus.'

Breakdown of detritus into smaller particles by earthworm is a process called

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Humification

  2. Fragmentation

  3. Mineralisation

  4. Catabolism

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Correct Option: B
Explanation:

Decomposition is the process of breaking of complex organic matter into simpler inorganic matter. There are five steps of decomposition. These are fragmentation, leaching, catabolism, humification and mineralization. Fragmentation is the process of breaking of detritus into small pieces by earthworm. Leaching is the process of releasing nutrients in the water and seeping into the soil. Catabolism is the process of breaking down of complex molecules into the simpler molecules. Humification is the process of formation of dark colored humus on the soil. MIneralization is the process of degradation of the hummus to release inorganic nutrients.

Thus, the correct answer is 'Fragmentation.'

Breakdown of detritus into small particles by detrivores is called

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Leaching

  2. Humification

  3. Catabolism

  4. Mineralisation

  5. Fragmentation

Show answer
Correct Option: E
Explanation:

Decomposition is the process of breaking of complex organic matter into simpler inorganic matter. There are five steps of decomposition. These are fragmentation, leaching, catabolism, humification and mineralization. Fragmentation is the process of breaking of detritus into small pieces by detrivores. Leaching is the process of releasing nutrients in the water and seeping into the soil. Catabolism is the process of breaking down of complex molecules into the simpler molecules. Humification is the process of formation of dark colored humus on the soil. MIneralization is the process of degradation of the hummus to release inorganic nutrients.

Thus, the correct answer is 'Fragmentation.'

The process of breakdown of detritus by detrivores is

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Mineralisation

  2. Fragmentation

  3. Leaching

  4. Humification

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Correct Option: B
Explanation:

Decomposition is the process of breaking of complex organic matter into simpler inorganic matter. There are five steps of decomposition. These are fragmentation, leaching, catabolism, humification and mineralization. Fragmentation is the process of breaking of detritus into small pieces by detrivores such as earthworm. Leaching is the process of releasing nutrients in the water and seeping into the soil. Catabolism is the process of breaking down of complex molecules into the simpler molecules. Humification is the process of formation of dark colored substance humus on the soil. It undergoes microbial action at a slow rate. Mineralization is the process of degradation of the hummus to release inorganic nutrients.

Thus, the correct answer is 'Fragmentation.'

During the process of decomposition, in which stage complex organic matter is converted to inorganic ions and salts by fungi?

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Mineralization

  2. Catabolism

  3. Fragmentation

  4. All of the above

Show answer
Correct Option: A
Explanation:

Mineralization in the process of decomposition in which complex organic matter is oxidized into soluble inorganic ions and salts. It increases bioavailability of the nutrients as soluble inorganic form is readily available to plants. The process is carried out by soil microorganisms like bacteria and fungi.

Thus, the correct answer is option A.

The different steps involved in the process of decomposition of detritus are

zoology ecosystems decomposition in ecosystem ecosystem productivity and decomposition producers, consumers and decomposers

  1. Fragmentation 

  2. Leaching and Catabolism

  3. Humification and mineralization

  4. All of the above

Show answer
Correct Option: D
Explanation:
Decomposition is the process in which complex organic matter is broken down into inorganic raw materials with the help of decomposer. There are different steps involved in the process of decomposition of detritus like:
(1) Fragmentation: In this, complex organic matter is fragmented into smaller pieces by earthworms.
(2) Leaching: In this, water soluble nutrients penetrates into the soil layers and get locked as unavailable salts.
(3) Catabolism: In this, bacteria and fungi degrade detritus through various enzymes.
(4) Humification: This step results in the formation of a dark-coloured colloidal substance called humus. It is a reservoir of nutrients for plants.
(5) Mineralization: The humus is further degraded by the action of microbes and inorganic nutrients are released into the soil by the process of mineralization.
Thus, the correct answer is 'All of the above.'