Tag: biodiversity and classification

Questions Related to biodiversity and classification

In which kingdom would you include archaea and nitrogen-fixing organisms in the five-kingdom classification?

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Plantae

  2. Fungi

  3. Protista

  4. Monera

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Correct Option: D
Explanation:

Whittaker's classification includes five kingdom classification system. The five kingdoms include Monera, Protista, Fungi, Plantae, and Animalia. Monera includes Eubacteria and Archaea. They include non-nucleated unicellular organisms. They are prokaryotes. They have a cell wall. They have no membrane-bound organelles and true nucleus.

Thus, the correct answer is 'Monera.'

Maximum nutritional diversity is found in

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Fungi

  2. Monera

  3. Plantae

  4. Animalia

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Correct Option: B
Explanation:
The kingdom monera is comprised of two groups as archaebacteria and eubacteria. There is diverse range of organisms which are placed under this kingdom. There are prokaryotic bacteria which possess the heterotrophic mode of nutrition in which the digested food material is directly engulfed by the cell. The cyanobacteria are autotrophic and can prepare their food through photosynthesis. There are some chemotrophs which use the organic and inorganic compounds as the source of energy.
Thus, the correct answer is option B.

Organisms without nucleus and cell organelles belong to____________.

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Fungi

  2. Protista

  3. Algae

  4. Bacteria

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Correct Option: D
Explanation:

The kingdom of Monera is divided into two groups, Archaebacteria, and Eubacteria. The organisms in eubacteria are unicellular prokaryotes that do not have well-developed cell organelles such as the nucleus, mitochondria, chloroplast, etc. 

Thus, the correct answer is option D. 

In five-kingdom classification system, the kingdom that includes the blue-green algae nitrogen-fixing bacteria and methanogenic archaebacteria is

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Plantae

  2. Fungi

  3. Protista

  4. Monera

Show answer
Correct Option: D
Explanation:

Monera includes - Archaebacteria and Eubacteria. 

Archaebacteria differ from other bacteria in having a different cell wall structure and this feature is responsible for their survival in extreme conditions. eg -Methanogens.
Eubacteria are characterized by the presence of a rigid cell wall, and if motile, a flagellum. The cyanobacteria (blue-green algae) have chlorophyll a similar to green plants and are photosynthetic autotrophs. Heterotrophic bacteria are helpful in making curd from milk, production of antibiotic, fixing nitrogen in legume roots, etc.
So the correct option is "Monera".

Choose the correct answers from the alternatives given.
Among different kinds of water which of the following is free from bacteria?

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Deep well water

  2. Sea water

  3. Water of hot springs

  4. Rain water as it falls down

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Correct Option: D
Explanation:

These bacteria in rainfall don't seem to cause any harm to humans though. 

So, the correct option is 'Rainwater as it falls down'.

Choose the correct answers from the alternatives given:
All monerans

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. lack an endoplasmic reticulum

  2. contain DNA and RNA

  3. demonstrate a long circular strand of DNA not found enclosed in a nuclear membrane

  4. all of the above

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Correct Option: D
Explanation:
  • Monera is a kingdom that contains unicellular organisms with a prokaryotic cell organization such as bacteria. They are single-celled organisms with an absence of membrane-bound organelles. The nucleus and endoplasmic reticulum, as well as other organelles, are absent. 
  • Hence, the correct answer is 'All of the above'.

Choose the correct answers from the alternatives given.
Which one of the following is not true of organisms included in the kingdom Monera?

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. They reproduce by mitosis

  2. They originated at least 3.5 billion years ago

  3. They have prokaryotic cellular organisation

  4. Most have cell walls

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Correct Option: A
Explanation:

Kingdom Monera is able to reproduce through the process of binary fission. It means that a cell replicates its DNA and then divides into two identical cells.

Hence, the correct answer is 'They reproduce by mitosis'.

Choose the correct answers from the alternatives given.
Which one of the following is not true of prokaryotes?

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. They are living cells

  2. They lack a nucleus

  3. They all are parasitic

  4. They are both archaea and bacteria

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Correct Option: C
Explanation:

Prokaryotes are single-celled organisms of Bacteria and Archaea. All prokaryotes lack membrane-bound organelles.

So, the correct option is 'They all are parasitic'.

Cyanobacteria are classified under _____________.

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Protista

  2. Plantae

  3. Monera

  4. Algae

Show answer
Correct Option: C
Explanation:

Cyanobacteria are classified under Kingdom Monera as they are prokaryotes. They are generally photosynthetic in nature and contains pigments, chlorophyll a, carotenoids, etc. Nostoc and Oscillataria are examples of this category.

So the correct option is C.

In which kingdom, would you classify the archaea and nitrogen-fixing organisms, if the five-kingdom system of classification is used?

biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

  1. Plantae

  2. Fungi

  3. Protista

  4. Monera

Show answer
Correct Option: D
Explanation:

The five kingdom classification system is comprised of Monera, Protista, Fungi, Plantae and Animalia. The kingdom Monera is divided into the Archaebacteria and the Eubacteria. The Archaebacteria group includes all the archae which are primitive prokaryotes. The Eubacteria group includes the nitrogen-fixing bacterium. So, these organisms are placed in the group of monera.

Thus, the correct answer is option D.