• Biological Classification (Class - XI)
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Biological Classification (Class - XI)

Description: Biological Classification
Number of Questions: 19
Created by:
Tags: Biological Classification Kingdom Monera Classification of Prokaryotic Organisms Kingdom Protista Classification of Unicellular Eukaryotic Organisms Kingdom Fungi Classification of Fungi Kingdom Plantae Plant Kingdom Kingdom Animalia Animal Kingdom
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Which of the following bacteria are responsible for the production of biogas from the dung of animals, such as cows and buffaloes?

  1. Halophiles

  2. Thermoacidophiles

  3. Cyanobacteria

  4. Bacilli

  5. Methanogens

Show answer
Correct Option: E
Explanation:

This is the correct option. Methanogens are responsible for the production of biogas from the dung of animals, such as cows and buffaloes. They are present in the gut of these animals.

Which of the following statements is/are false?

a. Linnaeus used simple morphological characters to classify plants into trees, shrubs and herbs. b. The two kingdom system of classification did not distinguish between the eukaryotes and prokaryotes, and unicellular and multicellular organisms. c. The five kingdom classification was proposed by R. H. Whittaker in 1969.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c

Show answer
Correct Option: A
Explanation:

Aristotle used simple morphological characters to classify plants into trees, shrubs and herbs.

Which of the following is an example of flagellated protozoa?

  1. Amoeba

  2. Paramoecium

  3. Entamoeba

  4. Plasmodium

  5. Trypanosoma

Show answer
Correct Option: E
Explanation:

This is the correct option. Trypanosoma is an example of flagellated protozoa.

Which of the following members of Kingdom Plantae is/are parasite(s)?

a. Bladderwort b. Venus fly trap c. Cuscuta

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c

Show answer
Correct Option: E
Explanation:

This is the correct option. Cuscutta, a member of Kingdom Plantae, is a parasite.

Which of the following is not a feature of organisms of Kingdom Animalia?

  1. The organisms of this kingdom are multicellular.

  2. They depend directly or indirectly on plants for their food.

  3. The organisms of this kingdom have cell walls in their cells.

  4. Their mode of nutrition is holozoic.

  5. The organisms of this kingdom digest food in an internal cavity.

Show answer
Correct Option: C
Explanation:

This is the correct option as this is not a feature of organisms of Kingdom Animalia. 

Which of the following is/are not a member of Kingdom Protista?

  1. Chlamydomonas

  2. Chlorella

  3. Paramoecium

  4. Bacteria

  5. Amoeba

Show answer
Correct Option: D
Explanation:

This is the correct option as bacteria is not a member of Kingdom Protista. It is a member of Kingdom Monera. Amoeba is a member of Kingdom Protista. This is a wrong option.

Which of the following act as parasites and grow in soil, on logs and tree stumps?

  1. Deuteromycetes

  2. Basidiomycetes

  3. Ascomycetes

  4. Phycomycetes

  5. None of these

Show answer
Correct Option: B
Explanation:

This is the correct option. Basidiomycetes grow in soil. They also grow on logs and tree stumps and in living plant bodies as parasites.

Which of the following statements is/are false?

a. A single virus contains both genetic materials - RNA and DNA. b. Viruses are inert outside their specific host cell. c. Viruses which infect animals can have either single- or double-stranded RNA or double-stranded DNA.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c

Show answer
Correct Option: A
Explanation:

This is the correct option as this statement is false. 

Match the following:

Names of archaebacteria Places where they live
a. Halophiles 1. They live in extreme salty areas.
b. Thermoacidophiles 2. They live in marshy areas.
c. Methanogens 3. They live in hot springs.

  1. a - 2, b - 3, c - 1

  2. a - 1, b - 3, c - 2

  3. a - 3, b - 1, c - 2

  4. a - 3, b - 2, c - 1

  5. a - 1, b - 2, c - 3

Show answer
Correct Option: B
Explanation:

This is the correct option. Halophiles live in salty areas. Thermoacidophiles live in hot springs. Methanogens live in marshy areas.

Which of the following spores of fungi reproduce sexually?

a. Conidia b. Oospores c. Zoospores d. Ascospores

  1. Only a and c

  2. Only b and d

  3. Only a and b

  4. Only b and c

  5. Only a and d

Show answer
Correct Option: B
Explanation:

This is the correct option. The spores of fungi that reproduce sexually are oospores and ascospores.

Which of the following are the members of the group Chrysophytes?

a. Gonyaulax b. Diatoms c. Desmids d. Euglena

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only b and c

  5. Only b and d

Show answer
Correct Option: D
Explanation:

This is the correct option. Diatoms and desmids belong to the group Chrysophytes.

Which of the following is not a characteristic of kingdom Protista?

  1. Members of Protista are primarily aquatic.

  2. The Protistan cell body contains a well-defined nucleus.

  3. All single-celled eukaryotes are placed under Protista.

  4. Protists reproduce only asexually.

  5. Some have flagella or cilia.

Show answer
Correct Option: D
Explanation:

This is the correct option as this is not a characteristic of kingdom Protista. 

Which of the following organisms completely lack a cell wall, are the smallest living cells known and can survive without oxygen?

  1. Methanogens

  2. Cyanobacteria

  3. Mycoplasma

  4. Thermoacidophiles

  5. Halophiles

Show answer
Correct Option: C
Explanation:

Mycoplasma are the organisms that completely lack a cell wall, are the smallest living cells known and can survive without oxygen.

Match the following:

 
Names of bacteria Shapes
a. Bacillus 1. Comma-shaped
b. Vibrium 2. Spiral-shaped
c. Spirillum 3. Rod-shaped

  1. a - 3, b - 1, c - 2

  2. a - 3, b - 2, c - 1

  3. a - 1, b - 2, c - 3

  4. a - 1, b - 3, c - 2

  5. a - 2, b - 1, c - 3

Show answer
Correct Option: A
Explanation:

Bacillus is rod-shaped. Vibrium is comma-shaped. Spirillum is spiral-shaped.

Match the following:

a. Amoeboid protozoans 1. They are either free-living or parasitic, having flagella.
b. Flagellated protozoans 2. They live in fresh water, sea water or moist soil.
c. Ciliated protozoans 3. They are aquatic and actively moving organisms as they possess thousands of cilia.

  1. a - 2, b - 3, c - 1

  2. a - 3, b - 2, c - 1

  3. a - 1, b - 2, c - 3

  4. a - 2, b - 1, c - 3

  5. a - 3, b - 1, c - 2

Show answer
Correct Option: D
Explanation:

Amoeboid protozoans live in fresh water, sea water or moist soil. Flagellated protozoans are either free-living or parasitic, having flagella. Ciliated protozoans are aquatic and actively moving organisms as they possess thousands of cilia.

Fungi cause diseases in plants and animals. Which of the following fungi causes wheat rust in plants?

  1. Puccinia

  2. Penicillium

  3. Albugo

  4. Rhizopus

  5. Neurospora

Show answer
Correct Option: A
Explanation:

This is the correct option. The wheat rust causing fungus is Puccinia.

Which of the following is not a characteristic of bacteria?

  1. Many of the bacteria live in or on other organisms as parasites.

  2. Bacteria live in extreme habitats, such as hot springs, deserts, snow and deep oceans.

  3. Bacteria occur almost everywhere.

  4. Their cell wall is made up of cellulose.

  5. They are the most abundant microorganisms.

Show answer
Correct Option: D
Explanation:

This is the correct option. Their cell wall is non-cellulosic, and is made of peptidoglycan.

Which of the following is not a characteristic of Kingdom Monera?

  1. The organisms in Kingdom Monera are prokaryotic.

  2. The cell wall is non-cellulosic.

  3. Nuclear membrane is present.

  4. The body organisation is cellular.

  5. The modes of nutrition are autotrophic and heterotrophic.

Show answer
Correct Option: C
Explanation:

This is the correct option as this is not a characteristic of Kingdom Monera.

Which of the following are heterotrophs and live as predators or parasites?

  1. Protozoans

  2. Slime moulds

  3. Euglenoids

  4. Chrysophytes

  5. Dinoflagellates

Show answer
Correct Option: A
Explanation:

This is the correct option. Protozoans are heterotrophs and live as predators or parasites.

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