This set of Class 11 Biology Chapter 2 Multiple Choice Questions & Answers (MCQs) focuses on “Whittaker’s Classification of Organisms”.
1. Whittaker classified organisms based on their cell structure, mode of nutrition and method of reproduction.
a) True
b) False
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Explanation: Whittaker classified organism into 5 kingdoms based on their cell structure, mode of nutrition, method of reproduction and evolutionary relations namely, Monera, Protista, Fungi, Plantae and Animalia.
2. In Whittaker’s 5 kingdom classification, all the prokaryotic organisms are grouped under ________
a) Monera
b) Protista
c) Fungi
d) Animalia
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Explanation: In Whittaker’s 5 kingdom classification, all the prokaryotic organisms are grouped under Monera; all the unicellular organisms under Protista and all the fungi form a separate Kingdom. So, Whittaker’s 5 kingdom classification managed to include characteristics like nature and structure of cells.
3. In Whittaker’s 5 kingdom classification, all the unicellular organisms are categorised under ________
a) Protista
b) Monera
c) Porifera
d) Animals
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Explanation: In Whittaker’s 5 kingdom classification, all the unicellular organisms are categorised under Protista. For example, Amoeba, Paramecium, Chlorella and Chlamydomanas fall under the category of Protista.
4. Cell wall in fungi is made up of ________
a) Chitin
b) Cellulose
c) Amino acids
d) Proteins
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Explanation: Cell wall in fungi is made up of chitin. In plants, the cell wall is made up of Cellulose. Whittaker’s classification managed to consider the nature of cell wall which resulted in Fungi and Plants forming two different kingdoms.
5. Chlamydomanas is grouped under________
a) Monera
b) Protista
c) Plantae
d) Fungi
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Explanation: Chlamydomanas is a unicellular organism and so came under the category of Protista. Whittaker’s classification managed in grouping all the unicellular organisms under the category of Protista.
6. Which among the following don’t contain nuclear membrane?
a) Monera
b) Protista
c) Fungi
d) Animalia
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Explanation: In eukaryotes, all the cell organelles are separated by a membrane. This membrane is absent in prokaryotes. Whittaker classified all the prokaryotes under the kingdom Monera. So, nuclear membrane is absent in Monera.
7. Whittaker’s 5 kingdom classification failed to include Viruses.
a) True
b) False
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Explanation: Although Whittaker managed to consider cell structure, nature of the cell, mode of nutrition and method of reproduction in his classification he failed to include viruses in his classification.
8. All the heterotrophic plants are categorized under ____________
a) Protista
b) Fungi
c) Monera
d) Plantae
View Answer
Explanation: In Whittaker’s 5 kingdom classification all the heterotrophic plants are categorized under Fungi. For example, mushrooms, hypomycetes etc. Fall under the category of fungi.
9. Which among the following are incorrect?
a) Whittaker’s classification managed to consider cell structure, nature of the cell wall, mode of nutrition and method of reproduction
b) In 2 kingdom classification, all the fungi and algae are forcefully made to join Animalia
c) Whittaker’s classification is polyphyletic and so failed to group similar organism under the same kingdom
d) Whittaker’s classification didn’t include viruses
View Answer
Explanation: Whittaker’s classification managed to consider cell structure, nature of the cell wall, mode of nutrition and method of reproduction. In 2 kingdom classification, all the fungi and algae are forcefully made to join Plantae. Whittaker’s classification is polyphyletic and so failed to group similar organism under the same kingdom. Whittaker’s classification didn’t include viruses.
10. Plantae consists of _______
a) Prokaryotes
b) Unicellular organisms
c) Multi-cellular organism
d) Heterotrophs
View Answer
Explanation: Plantae consists of Eukaryotes that are multi-cellular and autotrophic i.e. all the organisms in Plantae have multiple cells that contain membranous cell organelles and also can prepare their own food.
Sanfoundry Global Education & Learning Series – Biology – Class 11.
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