Q.1
Cyanobacteria is the modern name of .. .. [ BHU 1991]
  • a) Myxomycetes
  • b) Myxophyceae
  • c) Schizomycetes
  • d) Mycoplasma
Q.2
T.O. Diener discovered … .. [ CBSE 2009]
  • a) Bacteriophage
  • b) Infectious protein
  • c) free infectious DNA
  • d) Free infectious RNA
Q.3
Who proposed that monocots are more primitive than dicots … .. [ kerala 2003]
  • a) Bentham and Hooker
  • b) Besssey
  • c) Aristotle
  • c) Engler and Prantl
Q.4
Bacteria that survive high salt concentration and temperature are….. [ Kerala 2000]
  • a) Cyanobacteria
  • b) Archaebacteria
  • c) Eubacteria
  • d) Actinomycetes
Q.5
Protista includes … .. [ CBSE 1994 ]
  • a) Heterotrophs
  • b) Chemoautotrophs
  • c) Chemoheterotrophs
  • d) All the above
Q.6
Bacteria living in human large intestine that feed on undigested food ithout harming the host are termed as … .. [ MPPMT 1994]
  • a) Predators
  • b) Commensals
  • c) Symbionts
  • d) Parasites
Q.7
Prophage is viral genome … . [ Odisha 2002 ]
  • a) Freshly synthesized
  • b) Inoculated to a bacterium
  • c) Outside the host cell
  • d) Incorporated and integrated to host genome
Q.8
On which of the following, five kingdom classified is based … .. [ CBSE 2002]
  • a) Cell wall
  • b) Genetic material
  • c) Type of organelles
  • d) Mode of nutrition
Q.9
Rickettsiae constitute a group under … [ CBSE 1994]
  • a) Bacteria
  • b) Viruses
  • c) Independent group between bacteria and viruses
  • d) Fungi
Q.10
Book written by Aristotle is ….. [ MPPMT 1999]
  • a) Historia Animalium
  • b) Histoire Naturelle
  • c) Systema Naturae
  • d) Philosophic Zoologique
Q.11
Barophilic prokaryotes …. [ CBSE 2005]
  • a) Occur in water containing high concentration of barium hydroxide
  • b) Grow slowly in alkaline frozen lakes high altitude
  • c) Grow and multiply in very deep marine sediments
  • d) Readily grow and divide in sea water enriched with soluble salt of barium
Q.12
Assertion: Plasmids are strands of extrachromosomal DNA Reason: Plastids are found in eukaryotic cells
  • a) If both the assertion and reason are true and reason explains the assertion.
  • b) If both the assertion and reason are true but reason does not explain the assertion
  • c) If assertion is true but reason is false
  • d) If assertion is false but reason is true.
Q.13
Natural system of classification is based on … .. [ DPMT 1992]
  • a) Ontogeny
  • b) Phylogeny
  • c) Morphology
  • d) Morphology and affinities
Q.14
Transformation in Diplococcus by heat-killed extract was discovered by … .. [ BHU 1997]
  • a) Brown
  • b) Griffith
  • c) Fleming
  • d) MCLeod
Q.15
The term new systematic was given by Julian Huxley in … ..
  • a) 1809
  • b) 1901
  • c) 1840
  • d) 1940
Q.16
Food can be kept unspoiled at … .. p MPPMT 1997]
  • a) High temperature
  • b) Low temperature
  • c) Osmotic temperature
  • d) All the above
Q.17
Symbiotic nitrogen fixing bacteria belong to … ….. [ CPMT 1990 ]
  • a) Xanthomonas
  • b) Acetobacter
  • c) Pseudomonas
  • d) Rhizobium
Q.18
Temin worked on virus … .. [ RPMT 2000]
  • a) Rhinovirus
  • b) Dengue virus
  • c) Herpes virus
  • d) Retrovirus
Q.19
Hereditary material of Escherichia coil is …. [ CBSE 1997]
  • a) Single stranded DNA
  • b) Double stranded DNA
  • c) Single stranded RNA
  • d) Double stranded RNA
Q.20
Find out the correct match … [ CBSE 2000]
  • a) AIDS – Bacillus anthracis
  • b) Syphilis – Trepoema palladium
  • c) Gonorrhoea – Leishmania donovani
  • d) Urethritis – Entamoeba gingivalis
Q.21
Prokaryotes are characterized by …[ JKCMEE 2004]
  • a) Absence of internal compartmentalization
  • b) Absence of nucleus
  • c) 70S ribosomes
  • d) All the above
Q.22
Which one converts nitrite to nitrate? … [ AIIMS 2002]
  • a) Nitrosomonas
  • b) Nitrobacter
  • c) Azotobacter
  • d) Rhizobium
Q.23
Salmonella causes …. [ CBSE 2001]
  • a) Polio
  • b) T.B.
  • c) Tetanus
  • d) Typhoid
Q.24
Which one has ss RNA? …. [ JKCMEE 2009]
  • a) Φ × 174
  • b) T2 bacteriophage
  • c) Pox virus
  • d) TMV
Q.25
Food poisoning and gas forming rod-shaped bacterium is … .. [ AMU 1995]
  • a) Shigella
  • b) Salmonella
  • c) Clostridium
  • d) Escherichia coil
Q.26
Flagella are absent in …. [ JKCMEE 2000]
  • a) Chlorophyta
  • b) Cyanophyta
  • c) Phaeophyta
  • d) Euglenophyta
Q.27
A bacterial disease is … .. [ MPPMT 1992]
  • a) Measles
  • b) Tuberculosis
  • c) Rabies
  • d) Small Pox
Q.28
Streptomycin is produced by .. … [ BHU 2006]
  • a) Streptomyces scoleus
  • b) Streptomyces fradiae
  • c) Streptomyces venezuelae
  • d) Streptomyces griseus
Q.29
Murein does not occur in the wall of …. [ KCET 2004]
  • a) Diatoms
  • b) Nostoc
  • c) Eubacteria
  • d) Blue green algae
Q.30
Spongiform encephalopathy is caused by … ..
  • a) Prion
  • b) E. Coil
  • c) Virus
  • d) Fungus
Q.31
Fertility of paddy fields is improved by addition of … .. [ MPPMT 1992]
  • a) Rhizobia
  • b) Gypsum
  • c) Sodium sulphate
  • d) Blue-Green Algae
Q.32
Milk is spoiled/ fermented/curdled by … [ MPPMT 1992]
  • a) Rhizobium
  • b) Lactobacillus
  • c) Azotobacter
  • d) Clostridium
Q.33
Nitrogen fixing aerobic photosynthetic and gram (-) bacteria are … .. [ AIIMS 1992]
  • a) Archaebacteria
  • b) Cyanobacteria
  • c) Chlorobacteria
  • d) Rickettsiae
Q.34
The infolds of plasma membrane in bacterial cells are known as … .. [ RPMT 2006]
  • a) Episomes
  • b) Mesosomes
  • c) Spherosomes
  • d) Acrosomes
Q.35
Some chemosynthetic bacteria use energy obtained from oxidizing … .. [ BHU 1991]
  • a) N2
  • b) H2S
  • c) Phosphorus
  • d) CO2
Q.36
Gram ( -) bacteria differ from Gram (+) bacteria in having … .. [ AFMC 1991]
  • a) Thick wall
  • b) Complex wall
  • c) Simple wall
  • d) Absence of wall lipids
Q.37
Vibrio cholera is like … … [CET Chd 2003]
  • a) Spring
  • b) Comma
  • c) Sphere
  • d) Rod
Q.38
A free living anaerobic nitrogen fixing bacterium is … .. [ BHU 2012]
  • a) Rhizobium
  • b) Streptococcus
  • c) Azotobacter
  • d) Clostridium
Q.39
Viral capsid is made of … .. [ MPPMT 2000]
  • a) Carbohydrates
  • b)Lipid
  • c) Protein
  • d) All the above
Q.40
Some bacteria produce resting spores during unfavourable conditions. They are … [ JKCMEE 1992]
  • a) Exospores
  • b) Endospores
  • c) Aplanospores
  • d) Chlamydospores
Q.41
“ Taxonomy without phylogeny is similar to bones without flesh” is the statement of … .. [ CBSE 1994]
  • a) Oswald Tippo
  • b) John Hutchinson
  • c) Takhtajan
  • d) Bentham and Hooker
Q.42
Viruses posses … .. [ BHU 2008]
  • a) DNA only
  • b) Nucleic acid, DNA or RNA
  • c) Protein only
  • d) Nucleic acid and protein
Q.43
Prokaryotic genetic material is .. .. [ CBSE 1999]
  • a) Linear DNA+ histones
  • b) Circular DNA + histones
  • c) Linear DNA without histones
  • d) Circular DNA without histones
Q.44
Nitrosomonas and Nitrobacter convert … [ MPPMT 1991]
  • a) Carbon dioxide to carbohydrates
  • b) Ammonium ion into nitrate
  • c) Nitrate ion into nitrogen molecule
  • d) Nitrogen into nitrate
Q.45
A bacterium with flagella all around is … .. [ AFMC 2001]
  • a) Amphitrichous
  • b) Lophotrichous
  • c) Cephalotrichous
  • d) Peritrichous
Q.46
Nitrogen fixer soil organisms belong to … [ CBSE 1994]
  • a) Mosses
  • b) Bacteria
  • c) Green Algae
  • d) Soil Fungi
Q.47
Sever Acute Respiratory Syndrome ( SARS) … .. [ AIIMS 2008]
  • a) Affects non-vegetarians faster than vegetarians
  • b) Is an acute form of asthma
  • c) Is caused by variant of Common Cold Virus ( Corona Virus)
  • d) Is caused by variant of Pneumococcus pneumonia
Q.48
DNA of Escherichia coli is … [ CBSE 1998]
  • a) ss and circular
  • b) ss and linear
  • c) ds and linear
  • d) ds and circular
Q.49
Spirulina is rich source of … [ Odisha 2009]
  • a) Minerals
  • b) Vitamins
  • c) Proteins
  • d) All the above
Q.50
Cell wall of bacteria/cyanobacteria possesses … [ AMU 1994]
  • a) Chitin
  • b) Cellulose
  • c) Murein/Mucopeptide
  • d) Peptidoglycan and amino sugars
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