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Biological Classification MCQ for NEET

Biological Classification MCQ for NEET

Biological Classification MCQ for NEET

R.H. Whittaker suggested a five-kingdom categorization in 1969. Monera, Protista, Fungi, Plantae and Animalia are the kingdoms he selected. His main classification criteria were body organisation, reproduction, manner of nutrition, cell structure and evolutionary relationships.

A six-kingdom categorization based on the division of the Kingdom Monera into two domains with the other eukaryotic kingdoms remaining in the third domain has also been proposed as a way to categorise eukaryotic kingdoms.

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Biological Classification MCQ for NEET

This categorization serves as the foundation for all biological research and facilitates the grouping of related species. As a result, the study becomes less difficult and it is possible to investigate creatures that have comparable traits together.

In this article, we will cover some Multiple choice questions on the topic of Biological classification which is important for the NEET examination.

MCQs

Q1. Aristotle classified the plants on the basis of their morphological characters and categorised them into
A) trees, shrubs and herbs
B) algae, bryophytes, pteridophytes, gymnosperms and angiosperms
C) embryophytes and tracheophytes
D) algae and embryophytes
Answer. A
Explanation: (a) Aristotle classified plants into trees, shrubs and herbs. He used simple morphological characters as a tool for his classification. He also divided animals into two groups those which have red blood and those that did not.
Q2. Who proposed two kingdom system of classification and named kingdoms as Plantae and Animalia ?
A) Carolus Linnaeus
B) RH Whittaker
C) Carl Woese
D) Herbert Copeland
Answer. A
Explanation: (a) Earlier, all the organisms of the world had been divided into two kingdoms, i.e. plant kingdom and animal kingdom.
This system of classification was given by Carolus Linnaeus in the book Systema Naturae (1735).
Q3. Which of the following characters served as the criteria for five kingdom system of classification proposed by Whittaker ?
A) Cell structure
B) Body organisation and mode of nutrition
C) Reproduction and phylogenetic relationships
D) All of the above
Answer. D
Q4. In five kingdom system of classification of RH Whittaker, how many kingdoms contain eukaryotes ?
A) Four kingdoms
B) One kingdom
C) Two kingdoms
D) Three kingdoms
Answer. A
Explanation: (a) The five kingdom classification proposed by Whittaker includes Monera, Protista, Fungi, Plantae and Animalia.
Out of which four kingdoms, i.e. Protista, Fungi, Plantae and Animalia contain eukaryotes.
Q5. In the five kingdom classification, Chlamydomonas and Chlorella are included in
A) Plantae
B) Algae
C) Protista
D) Monera
Answer. C
Explanation: (c) In the five kingdom classification, Chlamydomonas and Chlorella have been included in kingdom-Protista as they are autotrophic, eukaryotic organisms with cell wall.
Q6. Cyanobacteria are classified under which of the following kingdom ?
A) Protista
B) Monera
C) Algae
D) Plantae
Answer. B
Explanation: (b) Cyanobacteria are prokaryotes. In five kingdom system of classification (by RH Whittaker), all prokaryotes are included in the kingdom-Monera.
Q7. Among the following, which one is the most abundant group of microorganisms ?
A) Algae
B) Viruses
C) Protists
D) Bacteria
Answer. D
Q8. Bacteria are grouped under four categories based on their shape. Refer to the given figure. Identify A, B, C and D.
A) A - Vibrio, B - Cocci, C - Bacilli, D - Spirilla
B) A - Cocci, B - Bacilli, C - Spirilla, D - Vibrio
C) A - Bacilli, B - Spirilla, C - Vibrio, D - Cocci
D) A - Spirilla, B - Vibrio, C - Cocci, D - Bacilli
Answer. B
Explanation: (b) The given figures
A represents spherical-shaped bacteria generally called as cocci.
B represents the rod-shaped bacteria generally called as bacilli.
C represents the spiral-shaped bacteria (with flagella ranging from one to multiple) generally called as spirilla.
D represents the comma-shaped bacteria called as vibrio.
Q9. Some bacteria thrive in extreme environmental conditions such as the absence of oxygen, high salt concentration, high temperature and acidic pH.
Identify the type of bacteria.
A) Cyanobacteria
B) Eubacteria
C) Archaebacteria
D) Mycobacteria
Answer. C
Explanation: (c) Archaebacteria are a primitive group of bacteria. These bacteria can survive in extreme habitats such as marshes, hot springs, deserts, snow, etc.
Archaebacteria have a unique cell wall structure and composition which is responsible for their survival in such extreme conditions. Thus, the type of bacteria which corresponds to the features given is archaebacteria.
Q10. Which of the following conditions would be favoured by thermoacidophiles ?
A) Hot and alkaline
B) Snow and acidic
C) Hot and sulphur spring
D) Gut of cows
Answer. C
Explanation: (c) Thermoacidophiles belong to archaebacteria and have dual ability to tolerate high temperature as well as high acidity. They often live in hot sulphur springs where the temperature may be \( 80^{\circ} \mathrm{C} \) and \( \mathrm{pH} \) as low as 2 .

Enhance your preparation with Arexiq’s Mock Test Series where we provide solutions to various MCQs like we provide in this post “Biological Classification MCQ”. Our expert teachers explain the concepts thoroughly, making it easy for you to understand. We offer many types of questions ensuring a clear grasp of concepts.

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FAQ's

  • What is Biological Classification?

Answer. Biological classification is the process of grouping organisms based on their similarities and differences. This helps in the systematic study and identification of organisms.

  • Who is the father of modern taxonomy?

Answer. Carl Linnaeus is known as the father of modern taxonomy. He introduced the binomial nomenclature system for naming organisms.

  • What are the major taxonomic ranks in biological classification?

Answer. The major taxonomic ranks are Domain, Kingdom, Phylum, Class, Order, Family, Genus and Species.

  • What are the five kingdoms proposed by Robert Whittaker?

Answer. The five kingdoms are Monera, Protista, Fungi, Plantae and Animalia.

  • What is the three-domain system?

Answer. The three-domain system, proposed by Carl Woese, classifies life into Archaea, Bacteria and Eukarya, based on genetic and molecular differences.

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