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Biological Classification MCQs | Biological Classification Objective Type Questions with Answers

(1) In which plant ,gametophytic phase is main and sporophytic phase is subsidiary.
[A] Bryophytes
[B] pteridophytes
[C] gymnosperms
[D] angiosperms
Answer: Bryophytes
(2) The first land plant on earth was…………..
[A] Bryophytes
[B] pteridophtes
[C] gymnosperms
[D] angiosperms
Answer: pteridophtes
(3) The tallest living tree in the world is …………..
[A] Zamia sp.
[B] Eucalyptus sp.
[C] Wolffia sp.
[D] Sequoia sp.
Answer: Sequoia sp.
(4) The smallest gymnosperm is ………
[A] Zamia sp.
[B] Eucalyptus sp.
[C] Wolffia sp.
[D] Sequoia sp.
Answer: Zamia sp.
(5) Xerophytic characters are present in ……………………..
[A] Bryophytes
[B] pteridophytes
[C] gymnosperms
[D] angiosperms
Answer: gymnosperms
(6) Some bacteria thrive in extreme environment conditions such as absence of oxygen, high salt concentration, high temperature and acidic PH Name them…
[A] Cyanobacteria
[B] Eubacteria
[C] Archaebacteria
[D] Streptococcus
Answer: Archaebacteria
(7) All the bacteria fix nitrogen except …
[A] Rhizobium
[B] E Coli
[C] Azotobacter
[D] Cyanobacteria
Answer: E Coli
(8) The region where bacterial genome resides is termed as
[A] Nucleus
[B] Cytoplasma
[C] Nucleoid
[D] Ribosome free region
Answer: Nucleoid
(9) Fungi which grow in dung are termed as
[A] Caprophilous
[B] Tericolous
[C] Sacxicolous
[D] Saxiphilous
Answer: Caprophilous
(10) All fungi are
[A] Autotrophs
[B] Saprotrophs
[C] Heterotrophs
[D] Parasites
Answer: Saprotrophs
(11) The bacteria were first observed in the year 1675 by
[A] Carolus Linnaeus
[B] Alexander Fleming
[C] Anton Von Leenuwenhock
[D] Robert Brown
Answer: Anton Von Leenuwenhock
(12) Bacteria are classified on the basis of
[A] Method of reproduction
[B] Nucleus
[C] Cell wall
[D] pigments
Answer: Cell wall
(13) Bacteria without flagella are known as
[A] Atrichous
[B] Peritrichous
[C] Lophotrichous
[D] Monotrichous
Answer: Atrichous
(14) The cells of cyanobacteria and bacteria exhibit similarly in having
[A] Plastids
[B] Nuclei
[C] DNA
[D] Centrosome
Answer: DNA
(15) Bacteria do not need sunlight to grow because
[A] They prepare their food without the help of light
[B] They do not like sunlight brightness
[C] Due to the absence of chlorophyll they are incapable of manufacture their own food
[D] They use other kinds of light for manufacturing their own food.
Answer: Due to the absence of chlorophyll they are incapable of manufacture their own food
(16) Organism a regarded as “Joker’s in microbiological park”
[A] Bacteria
[B] Virus
[C] Mycoplasma
[D] Rickettsie
Answer: Mycoplasma
(17) Who discovered conjugation in bacteria?
[A] Arber and Smith
[B] Lederberg and Tatum
[C] Jacob and Monad
[D] Zinder and Lederberg
Answer: Lederberg and Tatum
(18) Bacteria used as biogas fermenters are
[A] Halophiles
[B] Methanogens
[C] Cyanobacteria
[D] Vibrio bacteria
Answer: Methanogens
(19) The gram negative bacteria detect and respond to chemicals in their surroundings by
[A] Volutin granules
[B] Lipopolysaccharide
[C] muramic acid
[D] Porins
Answer: Porins
(20) Which of the following is not present in Bacteria?
[A] RNA
[B] Cell wall
[C] Flagella
[D] Mitochondria
Answer: Mitochondria

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