Tag: monera

Questions Related to monera

Most extensive metabolic diversity is exhibited by

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

  1. kingdom monera

  2. kingdom plantae

  3. kingdom protista

  4. kingdom animalia

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Correct Option: A
Explanation:

Monera (Monos – single) includes prokaryotes.Typically, they are one-cell organisms (but one group is mycelial). The naked circular DNA is the genetic material in these organisms. There is no nuclear envelope. The only subcellular organs in the cytoplasm are ribosomes and simple chromatophores.There are no sap vacuoles. Instead, there may be gas vacuole. The predominant nutritional mode is absorbent, but certain groups are photosynthetic (holophytic) and chemosynthetic. The organisms, by beating easy flagella or gliding, are non-motile or move.

According to five kingdom system, blue green algae belongs to

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

  1. Metaphyta

  2. Monera

  3. Protista

  4. Algae

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Correct Option: B
Explanation:

The kingdom monera is comprised of the prokaryotic organisms. The blue green algae is included under the kingdom monera. These are primitive form of prokaryotic organisms. They are unicellular or multicellular forming filamentous structures. They do not have well-developed cell organelles such as nuclear membrane, nucleus, mitochondria, etc. 

Thus, the correct answer is option B. 

Monera contains prokaryotic organism.

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

  1. True

  2. False

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Correct Option: A
Explanation:

Monera is a kingdom that contains unicellular organisms with a prokaryotic cell organization (having no nuclear membrane), such as bacteria. They contain prokaryotic organisms which are single-celled organisms with no true nuclear membrane.

So, the correct answer is 'True'.

Given below are statements made by four students about Monerans.

(i) All Monerans show multicellular body designs - Ashok
(ii) Monerans show either autotrophic or heterotrophic nutrition - Gita
(iii) All Monerans possess cell wall - Ramesh
(iv) Blue-green algae is an example of Monera - Amit 

Which of the student(s) has/have made an incorrect statement?

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

  1. Ashok and Ramesh

  2. Ashok only

  3. Gita and Ramesh

  4. Amit and Ashok

Show answer
Correct Option: A
Explanation:

The kingdom monera is comprised of the prokaryotic organisms. The kingdom is divided into groups, archaebacteria, cyanobacteria, and eubacteria. They are unicellular or multicellular forming filamentous structures. They can show autotrophic, chemotrophic as well as the heterotrophic mode of nutrition. They do not have well-developed cell organelles such as the nuclear membrane, cell wall, nucleus, mitochondria, etc. 

Thus, the correct answer is option A. 

Blue green algae belong to______________

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

  1. Plantae

  2. Fungi

  3. Monera

  4. Protista

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Correct Option: C
Explanation:
Blue-green algae is also called as Cyanobacteria, is a large group of prokaryotic organisms that resemble the eukaryotic algae in morphological and ecological characteristics, and were at one time treated as algae, hence the common name of blue-green algae. The prokaryotic nature of the blue-green algae has been the reason for these to be classified in the prokaryotic kingdom Monera.
Therefore, the correct answer is option C.

Anabaena belongs to the kingdom Monera.

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

  1. True

  2. False

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Correct Option: A

Cyanobacteria belong  to_____________

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

  1. Monera

  2. Bryophyta

  3. Protista

  4. Plantae

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Correct Option: A
Explanation:

The kingdom Monera includes organisms that are single-celled known as bacteria. The microorganisms in the kingdom Monera are considered as the most ancient living forms on earth. The kingdom is divided into two groups Archaebacteria and Eubacteria. All the organisms of this kingdom are prokaryotes. These cells do not have a nuclear membrane, the chromosome is single and circular, they also lack membrane-bound cellular organelles. This kingdom includes bacteria, cyanobacteria, mycoplasma, etc. They are unicellular organisms and do not have a specific mode of nutrition. They can be either aerobic or anaerobic. These organisms have a cell wall that is made up of peptidoglycans. The cell organelles are not membrane-bound. 

Prokaryotic organisms make up the

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

  1. Archaebacteria, Eubacteria and Protists

  2. Archaebacteria and Protists

  3. Protists and Eubacteria

  4. Protists

  5. Eubacteria and Archaebacteria

Show answer
Correct Option: E
Explanation:
  • Living organisms are firstly divided into prokaryotes and eukaryotes. Prokaryotes are organisms with poorly defined nuclear structure and are further divided into two groups i.e. eubacteria and archaebacteria.
  •  Eukaryotes are the organisms with a well-defined nucleus and include groups of a higher organism such as protists.

The correct answer is 'Eubacteria and Archaebacteria'.

What is the reason for the success of monerans?

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

  1. Eukaryotic nature and rigid cell wall

  2. Absence of nucleus and other membrane bound organelles

  3. Absence of vacuole and microscopic in nature

  4. Rapid rate of cell division and metabolic diversity

Show answer
Correct Option: D
Explanation:

Monerans include a wide variety of bacteria. These can survive in extremely hot and salty concentrations, unlike other organisms. They can also divide very fast. They can produce millions of bacteria from one bacteria within minutes. So their rate of survival is very fast.

So, option D is the correct answer.

If organisms on the earth start dying, which group of organisms will be the last to die?

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

  1. Monera and Plantae

  2. Mycota and Monera

  3. Plantae and Protista

  4. Animalia and Mycota

Show answer
Correct Option: B
Explanation:

Monerans are organisms that can survive extreme conditions like heat and salt concentrations. As a result, they can survive even in hot water springs and volcanoes. They can also reproduce within minutes. So, they can also reproduce within minutes and produce hundreds of organisms like themselves. Mycota are fungi that survive in water bodies and mostly moist and shady locations. They too can survive if they receive moist and shady locations.

So, option B is the correct answer.