Q.1
One of the following is not eukaryotic … . [ Kerala 2003]
  • a) Protista
  • b) Monera
  • c) Plantate
  • d) All the above
Q.2
Mycoplasmas are not sensitive to … ..[MPPMT200 ]
  • a) Penicillin
  • b) Streptomycin
  • c) Erythromycin
  • d) Neomycin
Q.3
Which vitamin is synthesized by bacteria in human gut? … [ JIPMER 2000]
  • a) A
  • b) C
  • c) D
  • d) E
Q.4
Viroid causes … .. [ MPPMT 2007]
  • a) Cauliflower mosaic
  • b) Potato spindle mosaic
  • c) Tobacco mosaic
  • d) Tulip yellow mosaic
Q.5
Rod-shaped bacteria are called …. [ HPPMT 2001]
  • a) Coccus
  • b) Spirillum
  • c) Bacillus
  • d) Actinomyces
Q.6
In photosynthetic bacteria, the pigments occur in … .. [ CBSE 1999 ]
  • a) Chloroplasts
  • b) Chromoplasts
  • c) Chromatophores
  • d) Leucoplasts
Q.7
Bovine spongiform encephalopathy is a disease caused by prions in … .. [ KCET 2010]
  • a) Cow
  • b) Sheep
  • c) Potato
  • d) Man
Q.8
Bovine spongiform encephalopathy is a disease caused by prions in … . [ BHU 1994 ]
  • a) man
  • b) potato
  • c) cow
  • d) sheep
Q.9
The most primitive of monerans are … [ Pb PMT 1999]
  • a) Rickettsia
  • b) Actinomycetes
  • c) Progenote
  • d) Archaebacteria
Q.10
Photosynthetic pigments of bacteria are located in …
  • a) Cytoplasm
  • b) Thylakoid membranes
  • c) Ribosomes
  • d) Chloroplast membrane
Q.11
Example of prokaryotic cell is … [ Bih PMT 1996]
  • a) Green algae
  • b) Fungi
  • c) Bacteria
  • d) Bryophyte
Q.12
Bt gene occurs in … [ Wardha 200]
  • a) Bacillus thuringiensis
  • b) Escherichia coli
  • c) Agrobacterium tumefaciens
  • d) Rhizobium leguminosarum
Q.13
Which one does not occur in lytic life cycle of virulent DNA phage? … [ Odisha 2008]
  • a) The host cell lyses
  • b) New phages are released
  • c) Host cell produces a number of virions
  • d) Phage DNA integrates with host DNA
Q.14
A parasite which becomes saprophytic in the absence of host is called … [ RPMT 1998]
  • a) Obligate parasite
  • b) Facultative parasite
  • c) Obligate saprophyte
  • d) Facultative saprophyte
Q.15
Osmotrophs are … .. [ BHU 1992]
  • a) Bacteria
  • b) Fungi
  • c) Both a and b
  • d) Algae
Q.16
Cyanobacteria are … [ CPMT 2003]
  • a) Bacteria using cyanide for nutrition
  • b) Coloured fungi
  • c) Algae having blue-green cells
  • d) Viruses affecting bacterial growth
Q.17
AIDS virus contains … .. [ MPPMT 2009]
  • a) RNA with protein
  • b) DNA only
  • c) DNA with protein
  • d) DNA without protein
Q.18
One of the following is not characteristic feature of cyanobacteria
  • a) They form colonies
  • b) They are multicellular
  • c) They form blooms in water bodies
  • d) They can fix atmospheric nitrogen
Q.19
Murein of bacterial cell wall is derivative of …. [ CPMT 1998]
  • a) Protein
  • b) Fat and sugar
  • c) Organic acid and sugar
  • d) Sugar and amino acids
Q.20
Which one is nitrogen fixer blue green alga? ..
  • a) Ulothrix
  • b) Anabaena
  • c) Ulva
  • d) Hydrodictyon
Q.21
Which one protect bacteria from enzymes present in the external medium? [ EAMCET 2005]
  • a) Slime layer
  • b) S-layer
  • c) Flagella
  • d) Cell wall
Q.22
Bacterium associated with legume roots is … .. [ Pb PMT 1999]
  • a) Rizobium
  • b) Nostoc
  • c) Spirogyra
  • d) Clostridium
Q.23
Identify the correct sequence of event in viral replication: I) Eclipse II) Maturation III) Adsorption IV) Assembly V) Penetration VI) Lysis
  • a) I → II → III → IV → V → VI
  • b) II → I → III → IV → V → VI
  • c) III → V → I → II →I V → VI
  • d) III → V → I → IV → II → VI
Q.24
Bacteria can prepare food from … [ Har.PMT 2002]
  • a) NO3
  • b) N2
  • c) O2
  • d) Glycogen
Q.25
A non-photosynthetic aerobic nitrogen fixing soil bacterium in … .. [ BHU 1996]
  • a) Rhizobium
  • b) Clostridium
  • c) Azotobacter
  • d) Klebsiella
Q.26
Yield of rice is increased by …[ BHU 2008]
  • a) Clostridium
  • b) Anabaena
  • c) Azolla
  • d) Nostoc
Q.27
The agent which are known to cause CJD are … ..
  • a) Protein particles
  • b) A class of bacteria
  • c) A class of viruses
  • d) Fungi
Q.28
Polio Virus has … .. [ AFMC 1999]
  • a) ss DNA
  • b) ds DNA
  • c) ss RNA
  • d) ds RNS
Q.29
Prokaryotic algae are … …. [ RPMT 2000]
  • a) Phycomyces
  • b) Myxophyceae
  • c) Cyanobacteria
  • d) Both B and C
Q.30
Which gene cluster is responsible for nitrogen fixation in bacteria? ..
  • a) Nod, Nif, Nfx
  • b) Nod, Nif, Fix
  • c) Nod, NDf, Nfx
  • d) Ndx, Nif, Fix
Q.31
In which of the following will you look for Escherichia coli … .. [ AFMC 2001]
  • a) Water
  • b) Soil
  • c) Milk
  • d) Human intestine
Q.32
Match items of column I with those of column II and choose the correct combinations
Column I Column II
a) Pneumonia p. Vibrio comma
b) Citrus Canker q. Mycobacterium leprae
c) Cholera r. Yersinia pestis
d) Leprosy s. Xanthomonas citri
- - t. Diplococcus pneumoniae
  • a) a-t, b – s, c-p, d-q
  • b) a-t, b – q, c-s, d-q
  • c) a-t, b – s, c-q, d-p
  • d) a-t, b –qs, c-p, d-s
Q.33
What is true about archaebacteria … [ CBSE 2001]
  • a) All photosynthetic
  • b) All fossils
  • c) All halophiles
  • d) Oldest living beings
Q.34
Cyanobacterium of great nutritional value is … ..[kerala 2002]
  • a) Gloeocapsa
  • b) Scytonema
  • c) Stigonema
  • d) Spirulina
Q.35
match the columns and choose the correct combination …
a) Escherichia coli i)Nif gene
b)Rhizobium meliloti ii)Digest hydrocarbons of crude oil
c)Bacillus thuringiensis iii)Human insulin production
d)Pseudomonas putida iv)Biocontrol of fungal disease;
- - v)Biodegradable insecticide
  • a) a – iii, b – i, c-v, d-iv
  • b) a – i, b – ii, c-iii, d-iv
  • c) a – ii, b – i, c-iii, d-iv
  • d) a – ii, b – i, c-iii, d-iv
Q.36
Outer limiting layer of Mycoplasma is formed of … .. [ Odisha 2002]
  • a) Slime
  • b) Mucilage
  • c) Cell wall
  • d) Cell membrane
Q.37
Inner wall of Gram(-) bacteria is formed of …. [ RPMT 2000]
  • a) Lipoprotein
  • b) Mucopeptide
  • c) Chromoprotein
  • d) Glycoprotein
Q.38
Mitotic apparatus is absent in …. [ MPPMT 2000]
  • a) Green algae
  • b) Fungi
  • c) Bacteria
  • d) Higher plants
Q.39
Which one occurs in cell wall of Gram(+) bacteria only? [JKCMEE2008]
  • a) Peptidoglycan
  • b) Lipopolysaccharide
  • c) Teichoic acid
  • d) None of the above
Q.40
Number of endospores usually produced by one bacterial cell is …. [ Odisha 2002]
  • a) Numerous
  • b) Three to four
  • c) Two
  • d) One
Q.41
Antibiotic are … [ kerala 2002]
  • a) Drugs to kill virus
  • b) Toxins produced by bacteria
  • c) Products of bacterial metabolism
  • d) Both b and c
Q.42
Peritrichous bacteria have flagella … [ CPMT 1999]
  • a) All over the body
  • b) At one end
  • c) At both ends
  • d) None
Q.43
Antibiotic active against fungi are …[ Odisha2008]
  • a) Neomycin
  • b) Terramycin
  • c) Polyenes
  • d) Streptomycin
Q.44
Xanthomonas citri is related to … [ MPPMT 2002]
  • a) Disease in Xanthium
  • b) Xanthophyceae
  • c) A virus
  • d) Citrus canker
Q.45
Bacterial plasmid contains … .. [ BHU 1997]
  • a) RNA
  • b) RNA + Protein
  • c) DNA
  • d) Photosynthetic structures.
Q.46
Ray fungi are … .. [ BHU 1995]
  • a) Phycomycetes
  • b) Ascomycetes
  • c) Actinomycetes
  • d) Basidiomycetes
Q.47
What is false? [ DPMT 2009]
  • a) TMV has double stranded RNA molecule
  • b) Most plant viruses are RNA viruses
  • c) Bacteriophage has a double stranded DNA molecule
  • d) Most animal viruses are DNA viruses
Q.48
Which viral disease is spread by mosquito … [ DPMT 2003]
  • a) Plague
  • b) Typhus
  • c) Yellow fever
  • d) Elephantiasis
Q.49
Bacterial flagella are formed of .. .. [ AFMC 2004]
  • a) Amines
  • b) Proteins
  • c) Lipids
  • d) Carbohydrates
Q.50
Mycoplasma causes a disease …[ MPPMT 2001]
  • a) Tobacco wilt
  • b) Citrus canker
  • c) Apple fireblight
  • d) Little leaf disease
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