CBSE Class 11 Biology Biological Classification MCQs Set B

Question: Five kingdom system of classification suggested by R.H. Whittaker is not based on
a) presence or absence of a well defined nucleus
b) mode of reproduction
c) mode of nutrition
d) complexity of body organisation.
Answer: b

Question: Pick up the wrong statement.
a) Some fungi are edible.
b) Nuclear membrane is present in Monera
c) Cell wall is absent in Animalia
d) Protists have photosynthetic and heterotrophic modes of nutrition.
Answer: b

Question: Biochemical resemblances are used in the identification of:
a) Protistan species
b) Moneran species
c) Fungal species
d) Higher plants
Answer: b

Question: What is the genetic material in influenza virus?
a) Double helical DNA
b) RNA
c) Single helix DNA
d) None of the options
Answer: b

Question: Select the wrong statement.
a) The walls of diatoms are easily destructible.
b) ‘Diatomaceous earth’ is formed by the cell walls of diatoms.
c) Diatoms are chief producers in the oceans.
d) Diatoms are microscopic and float passively in water.
Answer: a

Question: Which fungal disease spreads by seed and flowers?
a) Loose smut of wheat
b) Corn smut
c) Covered smut of barley
d) Soft rot of potato
Answer: a

Question: Archaebacteria differ from eubacteria in
a) cell membrane structure
b) mode of nutrition
c) cell shape
d) mode of reproduction.
Answer: a

Question: The technique of developing pure culture of bacteria was developed by:
a) J. Lister
b) L. Pasteur
c) R. Koch
d) A.V. Leeuwenhoek
Answer: b

Question: Majority of lichens are made of:
a) Blue-green algae and basidiomycetes
b) Brown algae and higher plants
c) Red algae and ascomycetes
d) Blue-green algae and ascomycetes
Answer: d

Question: Which characteristic placed the fungi in a separate kingdom?
a) Cell wall composition
b) Cell wall structure
c) Nutrition
d) Nuclear membrane
Answer: a

Question: Seeding ponds with Gambusia fish is an example of:
a) Parasitism
b) Biocontrol
c) Hyperparasitism
d) Both Parasitism and Biocontrol
Answer: b

Question: Currently bacteria are included in:
a) Thallophyta
b) Monera
c) Mycota
d) Protista
Answer: b

Question: Which of the following there is no mention in Whittaker’s classification?
a) Virus
b) Viroids
c) Lichens
d) All of these
Answer: d

Question: Passive food ingestion in Amoeba is known as
a) Import
b) Invagination
c) Circumfluence
d) Circumvallation
Answer: a

Question: Four kingdom system of classification was proposed by:
a) Whittaker
b) Copeland
c) Linnaeus
d) Oswald Tippo
Answer: b

Question: What is not connected with reproduction of protozoans?
a) Cryptogamy
b) Autogamy
c) Schizogamy
d) Conjugation
Answer: c

Question: Euglena stores food as:
a) Paramylum
b) Starch
c) Fat
d) Protein
Answer: a

Question: Which of the following can be used as bacteriological filter?
a) Cymbella
b) Batrachospermum
c) Oscillatoria
d) Gelidium
Answer: a

Question: Single-celled eukaryotes are included in
a) protista
b) fungi
c) archaea
d) monera
Answer: a

Question: Which one is the wrong pairing for the disease and its causal organism?
a) Black rust of wheat-Puccinia graminis
b) Loose smut of wheat-Ustilago nuda
c) Root knot of vegetables-Meloidogyne sp.
d) Late blight of potato-Alternaria solani
Answer: d

Question: An obligate anaerobe is:
a) Ulothrix
b) Methane bacteria
c) Spirogyra
d) Onion
Answer: b

Question: Which of the following is aerobic in nature?
a) Halophiles
b) Methanogens
c) Thermoacidophiles
d) None of the options
Answer: a

Question: Which of the pigment present in cyanobacteria?
a) Chlorophyll ‘a’
b) Chlorophyll ‘b’
c) Chlorophyll ‘c’
d) Xanthophylls
Answer: a

Question: Who is the Joker of plant kingdom?
a) Mycoplasma
b) Chlorella
c) Chlamydomonas
d) Spirullina
Answer: a

Question: Mycoplasma is:
a) Insensitive to penicillin, sensitive to tetracycline
b) Insensitive to tetracycline, sensitive to penicillin
c) Sensitive to both penicillin & tetracycline
d) None of the options
Answer: a

Question: Azotobacter and Bacillus polymyxa are the examples of
a) pathogenic bacteria
b) decomposers
c) symbiotic N2 fixer
d) non-symbiotic N2 fixer.
Answer: d

Question: Plasmids was given by
a) Tatum
b) Lederberg
c) Zinder
d) Griffith
Answer: b

Question: Which one of the following statements about mycoplasma is wrong?
a) They are pleomorphic.
b) They are sensitive to penicillin.
c) They cause diseases in plants.
d) They are also called PPLO.
Answer: b

Question: Which type of plasmid contains Antibiotic resistance gene?
a) “R”- factor
b) “S”- factor
c) “G” – factor
d) “r” – factor
Answer: a

Question: Basophilic prokaryotes
a) grow and multiply in very deep marine sediments
b) occur in water containing high concentrations of barium hydroxide
c) readily grow and divide in sea water enriched in any soluble salt of barium
d) grow slowly in highly alkaline frozen lakes at high altitudes.
Answer: a

Question: In five kingdom system, the main basis of classification is
a) structure of nucleus
b) mode of nutrition
c) structure of cell wall
d) asexual reproduction.
Answer: b

Question: DNA replication in bacteria occurs
a) within nucleolus
b) prior to fission
c) just before transcription
d) during S phase.
Answer: b

Question: Difference in Gram positive and Gram negative bacteria is due to
a) cell wall
b) cell membrane
c) ribosome
d) cytoplasm.
Answer: a

Question: Infective stage of Entamoeba histolytica is:
a) Pre-cyst
b) Tetranucleate cyst
c) Uninucleate cyst
d) Trophozoite
Answer: b

Question: Virion is a/an:
a) Virus
b) Enucleated virus
c) Prion
d) Virus without protein coat
Answer: a

Question: Colonies of Eubacteria is surrounded by
a) Polysaccharide sheath
b) Gelatinous sheath
c) Mucous sheath
d) None of the options
Answer: b

Question: Which of these is a bacterial disease?
a) Chlorella
b) Measles
c) Citrus canker
d) Both Chlorella & Citrus canker
Answer: d

Question: Which one of the following is wrong for fungi?
a) They are eukaryotic
b) All fungi possess a purely cellulosic cell wall.
c) They are heterotrophic
d) They are both unicellular and multicellular.
Answer: b

Question: Puccinia forms uredia and
a) telia on wheat leaves
b) aecia on barberry leaves
c) pycnia on barberry leaves
d) aecia on wheat leaves.
Answer: a

Question: New name of Blue green algae:
a) Chlorella
b) Spirulina
c) Cyanobacteria
d) None of the options
Answer: c