Tag: biodiversity and classification

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Questions Related to biodiversity and classification

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

Which kingdon included nutritioally most diversed group of organisms and has no well defined boundaries?

  1. Monera

  2. Protist

  3. Fungi

  4. Plantae
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Kingdom Monera contains bacteria, which exhibit the most diverse metabolic strategies (autotrophic, heterotrophic, chemoautotrophic) and lack a defined nuclear membrane, making their boundaries less distinct compared to other kingdoms.

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

Select correct statement w.r.t. Monera

  1. All unicellular and Gram negative

  2. Very simple in behaviour

  3. Show the most extensive metabolic diversity

  4. Show intercellular transport by cyclosis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The kingdom Monera includes all prokaryotes, which may be gram positive or gram negative bacteria. They have a simple structure but are complex in behaviour. Intercellular transport by cyclosis is seen only in eukaryotes and hence is not found in monera. They have an extensive metabolic diversity and their mode of nutrition may be heterotrophic or autotrophic. 

So, the correct option is 'Show the most extensive metabolic diversity'.

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

Which of the following is correct?

  1. Bacteria are only autotrophic.

  2. Bacteria are only heterotrophic.

  3. Most bacteria are heterotrophic but few are autotrophic.

  4. Most bacteria are autotrophic but few are heterotrophic.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The bacteria are the prokaryotic organisms which are generally heterotrophic. These bacteria feed on the dead and digested matter. There are certain species of bacterium which is inclusive of the cyanobacteria. These are the blue-green algae which can perform photosynthesis due to the presence of the chlorophyll pigments. The other bacterial species can perform chemosynthesis and can utilise the organic and inorganic compounds as the source of energy. 

Thus, the correct answer is option C. 

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

Monera is divided into archaebacteria and eubacteria.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • Monera is a kingdom that contains unicellular organisms with a prokaryotic cell organization (having no nuclear membrane), such as bacteria. Until recently, all bacteria were grouped together in one kingdom (five-kingdom system). 
  • The five-kingdom system is divided into animals, plants, fungi, protists, and monera. The Monera kingdom is made up of two phyla, or groups. They are archaebacteria and eubacteria.
So, the correct answer is 'True'.

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

Bacteria were considered as plant because

  1. They have a cell wall.

  2. They multiply by fission.

  3. They can't move.

  4. They are present every where.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The plant cell possesses a cell wall which is composed of cellulose, pectin and lignin. The cell wall provides mechanical strength and protection to the internal cellular organelles. The bacterial cell also possesses a cell wall which is made up of peptidoglycan. Due to the presence of the cell wall, the bacteria were also considered similar to the plant cell. 

Thus, the correct answer is option A. 

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

How many of the following statements are not true for kingdom Monera?
(i) Most of the members are prokaryotic.
(ii) Some of the monerari can perform photosynthesis
(iii) All the members have celll wall of peptidoglyean
(iv) All the members of monera are devoid of true nucleus.
(v) All the members are pathogenic

  1. $One$
  2. $Two$
  3. $Three$
  4. $Four$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
 All the members are not pathogenic
All the other statements are true for monera
Multiple choice biology biodiversity and classification monera five kingdoms of living organisms biodiversity and need of classification

According to Whittaker, one of the following is most primitive evolutionary group

  1. Plantae

  2. Fungi

  3. Protista

  4. Monera
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

R. H. Whittaker proposed the five kingdom classification in which the Monera group is considered as the most primitive group. The kingdom Monera includes organisms such as the archaebacteria, bacteria, cyanobacteria (BGA), and filamentous actinomycetes. These organisms are unicellular or multicellular prokaryotes. There are different forms of primitive organisms which show that the evolution occurred in these organisms much before compared to the organisms of the other group. 

Thus, the correct answer is option D. 

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

Most extensive metabolic diversity is exhibited by

  1. kingdom monera

  2. kingdom plantae

  3. kingdom protista

  4. kingdom animalia
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

According to five kingdom system, blue green algae belongs to

  1. Metaphyta

  2. Monera

  3. Protista

  4. Algae
Reveal answer Fill a bubble to check yourself
B Correct answer
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. 

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

Monera contains prokaryotic organism.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.