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Microbial Taxonomy and Diversity (GATE - XL)

Microbiology Taxonomy Microbial Diversity Biological Classification Microbial Taxonomy and Diversity

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following statements is false?

  1. Haeckel grouped bacteria and fungi with unrelated organisms.
  2. Whittaker included prokaryotic, autotrophic and heterotrophic organisms in kingdom Monera.
  3. Whittaker included eukaryotic, unicellular, autotrophic or heterotrophic organisms in kingdom Protista.
  4. Viruses are not the first cell organisms in Whittaker’s classification system.
  5. Copeland did not place fungi properly in his four kingdom of classification.
Question 2 Multiple Choice (Single Answer)

On the basis of ribosomal-RNA genes, three-domain biological classification; archaea, bacteria, and eukarya for the first time was introduced by

  1. Carl Woese
  2. Cavalier-Smith
  3. Whittaker
  4. Chatton
  5. Linnaeus
Question 3 Multiple Choice (Single Answer)

Which of the following microbial domains or kingdoms has characteristic - “Prokaryotic cells possessing primarily diacyl glycerol diester lipids in their membranes and bacterial rRNA and no nuclear membrane”?

  1. Domain Archaea
  2. Domain Bacteria
  3. Domain Eukarya
  4. Magnoliophyta
  5. Saccharomycotina
Question 4 Multiple Choice (Single Answer)

Which of the following are TRUE about yeasts characteristics?

  1. Eukaryotic, unicellular, absorptive heterotroph
  2. Prokaryotic, multicellular
  3. Prokaryotic, unicellular
  4. Eukaryotic, multicellular, absorptive heterotroph
  5. Eukaryotic, multicellular, photosynthetic autotroph
Question 5 Multiple Choice (Single Answer)

In the five kingdom classification system, what did Whittaker not place properly?

  1. Cyanobacteria
  2. Viruses
  3. Mycoplasma
  4. Rickettsiae
  5. Archaebacteria
Question 6 Multiple Choice (Single Answer)

Which of the following is a group of eukaryotes that represent descent from an organism that had an endosymbiosis between a line related to a bikont and a red alga?

  1. Domain Archaea
  2. Domain Bacteria
  3. Chromalvaeolate
  4. Magnoliophyta
  5. Saccharomycotina
Question 7 Multiple Choice (Single Answer)

Select the correct statement from the following options for domain Archaea.

  1. These are bacterial-like organisms that can live only in extreme salt environment.
  2. These are primitive protist-like creatures possessing fewer chromosomes per cell.
  3. These are extremophiles prokaryotes that share some bacterial and some eukaryotic characteristics.
  4. These are not methanogens.
  5. These are organisms that are only adapted to high temperature environment.
Question 8 Multiple Choice (Single Answer)

Bacteria and protists are placed in different domains. Which of the following options is the most appropriate?

  1. Bacterial cells lack membrane bounded nucleus, and protists have membrane bound nucleus.
  2. Bacteria do not have cells.
  3. Bacteria can decompose protists.
  4. Protists are photosynthetic and make their food from the sun like a plant.
  5. Protists are much older than bacteria.
Question 9 Multiple Choice (Single Answer)

From amongst the following options, select the most important role of microorganisms.

  1. Destruction of crops
  2. Production of food
  3. Breakdown of organic matter into inorganic chemicals
  4. Used as research tools for production of hormones
  5. Cause millions of deaths annually from diseases
Question 10 Multiple Choice (Single Answer)

The five kingdom system of biological classification of Whittaker consists of all of the following, except

  1. animalia
  2. protozoa
  3. protista
  4. plantae
  5. monera
Question 11 Multiple Choice (Single Answer)

Psychrophile microorganisms have a characteristic range of temperature in which they grow. Which of the following options tells us about that temperature range?

  1. Optimum temperature between 20oC - 40oC
  2. Optimum temperature below 15oC to 0oC
  3. Optimum temperature greater than 45oC
  4. Optimum temperature is the same as human body temperature.
  5. Optimum temperature greater than 50oC
Question 12 Multiple Choice (Single Answer)

Which of the following kingdoms is not included in the Cavalier-Smith's eight kingdom system of classification (1993)?

  1. Virons
  2. Eubacteria
  3. Chromista
  4. Archezoa
  5. Archaebacteria
Question 13 Multiple Choice (Single Answer)

Which of the following microorganisms does not contain cell wall?

  1. Pseudomonas
  2. Staphylococcus
  3. Streptococcus
  4. Mycoplasma
  5. Escherichia
Question 14 Multiple Choice (Single Answer)

What is the meannig of Phenetics classification?

  1. Organisms are classified on the basis of their ribosomal RNA.
  2. Organisms are classified based on overall similarity, regardless of their phylogeny or evolutionary relationships.
  3. Organisms are classified on the basis of type of nutrition.
  4. Organisms are classified based on genetic and DNA structures.
  5. Organisms are classified on the basis of microns.
Question 15 Multiple Choice (Single Answer)

What is the meaning of the term 'systematic' in the biological classification?

  1. Study of identification
  2. Study of nomenclature
  3. Study of classification
  4. Study of relationships
  5. Study of identification, nomenclature, classification and relationships
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