Tag: producers, consumers and decomposers

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Questions Related to producers, consumers and decomposers

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

Bacterial decomposition of organic matter, releases $NO _{2}$ into

  1. Stratosphere

  2. Troposphere

  3. Atmosphere

  4. Biosphere
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bacterial decomposition of organic matter releases various gases, including nitrogen compounds, into the atmosphere. The atmosphere is the general reservoir for these gases.

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

Which bacteria can flourish and carry out decomposition of organic matter, both in presence and absence of oxygen?

  1. Facultative Bacteria

  2. Aerobic Bacteria

  3. Anaerobic Bacteria

  4. Blue green algae
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Facultative bacteria are versatile organisms that can switch their metabolic pathways to survive and function in both the presence and absence of oxygen.

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

The plant parts when fully decomposed by microorganism and mixed in the soil is caIled as

  1. Litter

  2. Duff

  3. Humus

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Humus is a dark-brown or black organic substance made up of decayed plant or animal matter which are fully decomposed by microorganisms like bacteria. Humus provides nutrients for plants and increases the ability of soil to retain water. It has a characteristic black or dark brown color and is organic due to an accumulation of organic carbon. 

Therefore, the correct answer is option C.

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

Humus is 

  1. Dead and decayed organic matter

  2. Living matter

  3. Fertilizers

  4. Living animal, plants and microbes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up. This material is called leaf litter. When animals die, their remains add to the litter. The thick brown or black substance that remains after most of the organic litter has decomposed is called as humus. Humus contains many useful nutrients for healthy soil. 

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

The slow rate of decomposition of fallen Iogs in nature is due to their

  1. Anaerobic environment around them

  2. Low cellulose content

  3. Low moisture content

  4. Poor nitrogen content
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Photosynthetically fixed carbon is eventually degraded by micro-organisms and two major forms of carbon known as methane and carbon dioxide. The micro-organisms breakdown the complex compounds of dead protoplasm of producers compounds of dead protoplasm of producers and consumers absorb some of the decomposition products and release simple substances. The slow rate of decomposition of fallen logs in nature is because of low moisture content.

Therefore, the correct answer is option C.