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Biological Classification Viruses, Viroids, Prions And Kingdome Monera MCQ
Quiz 12
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Q.1
Cyanobacteria is the modern name of .. .. [ BHU 1991]
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a) Myxomycetes
0%
b) Myxophyceae
0%
c) Schizomycetes
0%
d) Mycoplasma
Explanation
Answer : (b)
Q.2
T.O. Diener discovered … .. [ CBSE 2009]
0%
a) Bacteriophage
0%
b) Infectious protein
0%
c) free infectious DNA
0%
d) Free infectious RNA
Explanation
Answer : (d)
Q.3
Who proposed that monocots are more primitive than dicots … .. [ kerala 2003]
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a) Bentham and Hooker
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b) Besssey
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c) Aristotle
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c) Engler and Prantl
Explanation
Answer : (d)
Q.4
Bacteria that survive high salt concentration and temperature are….. [ Kerala 2000]
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a) Cyanobacteria
0%
b) Archaebacteria
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c) Eubacteria
0%
d) Actinomycetes
Explanation
Answer : (b)
Q.5
Protista includes … .. [ CBSE 1994 ]
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a) Heterotrophs
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b) Chemoautotrophs
0%
c) Chemoheterotrophs
0%
d) All the above
Explanation
Answer : (d)
Q.6
Bacteria living in human large intestine that feed on undigested food ithout harming the host are termed as … .. [ MPPMT 1994]
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a) Predators
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b) Commensals
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c) Symbionts
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d) Parasites
Explanation
Answer : (b)
Q.7
Prophage is viral genome … . [ Odisha 2002 ]
0%
a) Freshly synthesized
0%
b) Inoculated to a bacterium
0%
c) Outside the host cell
0%
d) Incorporated and integrated to host genome
Explanation
Answer : (d)
Q.8
On which of the following, five kingdom classified is based … .. [ CBSE 2002]
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a) Cell wall
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b) Genetic material
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c) Type of organelles
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d) Mode of nutrition
Explanation
Answer : (d)
Q.9
Rickettsiae constitute a group under … [ CBSE 1994]
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a) Bacteria
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b) Viruses
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c) Independent group between bacteria and viruses
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d) Fungi
Explanation
Rickettsiae are gram negative obligate pleomorphic but intracellular parasites which resident of or are transmissable by arthropods. They are intermediate between true bacteria and viruses Answer : (b)
Q.10
Book written by Aristotle is ….. [ MPPMT 1999]
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a) Historia Animalium
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b) Histoire Naturelle
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c) Systema Naturae
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d) Philosophic Zoologique
Explanation
Author of Systema Naturae is Carl Linnaeus Author of Historia Animalium is ancient Greek philosopher Aristotle Author of Philosophic Zoologique is the French naturalist Jean-Baptiste Lamarck Histoire Naturelle is an encyclopaedic collection of 36 large (quarto) volumes written between 1749–1804, initially by the Comte de Buffon, and continued in eight more volumes after his death by his colleagues, led by Bernard Germain de Lacépède Answer : (d)
Q.11
Barophilic prokaryotes …. [ CBSE 2005]
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a) Occur in water containing high concentration of barium hydroxide
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b) Grow slowly in alkaline frozen lakes high altitude
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c) Grow and multiply in very deep marine sediments
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d) Readily grow and divide in sea water enriched with soluble salt of barium
Explanation
Answer : (c)
Q.12
Assertion: Plasmids are strands of extrachromosomal DNA Reason: Plastids are found in eukaryotic cells
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a) If both the assertion and reason are true and reason explains the assertion.
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b) If both the assertion and reason are true but reason does not explain the assertion
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c) If assertion is true but reason is false
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d) If assertion is false but reason is true.
Explanation
Answer : (b)
Q.13
Natural system of classification is based on … .. [ DPMT 1992]
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a) Ontogeny
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b) Phylogeny
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c) Morphology
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d) Morphology and affinities
Explanation
Answer : (d)
Q.14
Transformation in Diplococcus by heat-killed extract was discovered by … .. [ BHU 1997]
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a) Brown
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b) Griffith
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c) Fleming
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d) MCLeod
Explanation
Answer : (b)
Q.15
The term new systematic was given by Julian Huxley in … ..
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a) 1809
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b) 1901
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c) 1840
0%
d) 1940
Explanation
Answer : (d)
Q.16
Food can be kept unspoiled at … .. p MPPMT 1997]
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a) High temperature
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b) Low temperature
0%
c) Osmotic temperature
0%
d) All the above
Explanation
Answer : (b)
Q.17
Symbiotic nitrogen fixing bacteria belong to … ….. [ CPMT 1990 ]
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a) Xanthomonas
0%
b) Acetobacter
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c) Pseudomonas
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d) Rhizobium
Explanation
Answer : (d)
Q.18
Temin worked on virus … .. [ RPMT 2000]
0%
a) Rhinovirus
0%
b) Dengue virus
0%
c) Herpes virus
0%
d) Retrovirus
Explanation
Answer : (d)
Q.19
Hereditary material of Escherichia coil is …. [ CBSE 1997]
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a) Single stranded DNA
0%
b) Double stranded DNA
0%
c) Single stranded RNA
0%
d) Double stranded RNA
Explanation
Answer : (b)
Q.20
Find out the correct match … [ CBSE 2000]
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a) AIDS – Bacillus anthracis
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b) Syphilis – Trepoema palladium
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c) Gonorrhoea – Leishmania donovani
0%
d) Urethritis – Entamoeba gingivalis
Explanation
Answer : (b)
Q.21
Prokaryotes are characterized by …[ JKCMEE 2004]
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a) Absence of internal compartmentalization
0%
b) Absence of nucleus
0%
c) 70S ribosomes
0%
d) All the above
Explanation
Answer : (d)
Q.22
Which one converts nitrite to nitrate? … [ AIIMS 2002]
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a) Nitrosomonas
0%
b) Nitrobacter
0%
c) Azotobacter
0%
d) Rhizobium
Explanation
Answer : (b)
Q.23
Salmonella causes …. [ CBSE 2001]
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a) Polio
0%
b) T.B.
0%
c) Tetanus
0%
d) Typhoid
Explanation
Answer : (d)
Q.24
Which one has ss RNA? …. [ JKCMEE 2009]
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a) Φ × 174
0%
b) T2 bacteriophage
0%
c) Pox virus
0%
d) TMV
Explanation
Answer : (d)
Q.25
Food poisoning and gas forming rod-shaped bacterium is … .. [ AMU 1995]
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a) Shigella
0%
b) Salmonella
0%
c) Clostridium
0%
d) Escherichia coil
Explanation
Clostridium perfringens (formerly known as C. welchii, or Bacillus welchii) is a Gram-positive, rod-shaped, anaerobic, spore-forming pathogenic bacterium of the genus Clostridium Answer : (c)
Q.26
Flagella are absent in …. [ JKCMEE 2000]
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a) Chlorophyta
0%
b) Cyanophyta
0%
c) Phaeophyta
0%
d) Euglenophyta
Explanation
Answer : (b)
Q.27
A bacterial disease is … .. [ MPPMT 1992]
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a) Measles
0%
b) Tuberculosis
0%
c) Rabies
0%
d) Small Pox
Explanation
Answer : (b)
Q.28
Streptomycin is produced by .. … [ BHU 2006]
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a) Streptomyces scoleus
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b) Streptomyces fradiae
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c) Streptomyces venezuelae
0%
d) Streptomyces griseus
Explanation
Answer : (d)
Q.29
Murein does not occur in the wall of …. [ KCET 2004]
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a) Diatoms
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b) Nostoc
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c) Eubacteria
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d) Blue green algae
Explanation
Answer : (a)
Q.30
Spongiform encephalopathy is caused by … ..
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a) Prion
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b) E. Coil
0%
c) Virus
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d) Fungus
Explanation
Answer : (a)
Q.31
Fertility of paddy fields is improved by addition of … .. [ MPPMT 1992]
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a) Rhizobia
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b) Gypsum
0%
c) Sodium sulphate
0%
d) Blue-Green Algae
Explanation
Farmers can increase the paddy yield upto 50% by using, bio-fetilisers like Blue-green algae or Cyanobacteria. A blue-green algae called, Anabaena azollae is present in the leaves of aquatic fern, Azolla pinnata (which is in the paddy field), and the blue green alage fixes atmospheric Nitrogen, which in turn helping paddy to grow well. Explanation provided by S. Gokhulavasan Answer : (d)
Q.32
Milk is spoiled/ fermented/curdled by … [ MPPMT 1992]
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a) Rhizobium
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b) Lactobacillus
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c) Azotobacter
0%
d) Clostridium
Explanation
Answer : (b)
Q.33
Nitrogen fixing aerobic photosynthetic and gram (-) bacteria are … .. [ AIIMS 1992]
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a) Archaebacteria
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b) Cyanobacteria
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c) Chlorobacteria
0%
d) Rickettsiae
Explanation
Answer : (b)
Q.34
The infolds of plasma membrane in bacterial cells are known as … .. [ RPMT 2006]
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a) Episomes
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b) Mesosomes
0%
c) Spherosomes
0%
d) Acrosomes
Explanation
Answer : (b)
Q.35
Some chemosynthetic bacteria use energy obtained from oxidizing … .. [ BHU 1991]
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a) N2
0%
b) H2S
0%
c) Phosphorus
0%
d) CO2
Explanation
Answer : (b)
Q.36
Gram ( -) bacteria differ from Gram (+) bacteria in having … .. [ AFMC 1991]
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a) Thick wall
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b) Complex wall
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c) Simple wall
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d) Absence of wall lipids
Explanation
Answer : (b)
Q.37
Vibrio cholera is like … … [CET Chd 2003]
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a) Spring
0%
b) Comma
0%
c) Sphere
0%
d) Rod
Explanation
Answer : (b)
Q.38
A free living anaerobic nitrogen fixing bacterium is … .. [ BHU 2012]
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a) Rhizobium
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b) Streptococcus
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c) Azotobacter
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d) Clostridium
Explanation
Nitrogen fixing bacteria are of two types: (i) Symbiotic nitrogen fixation- these includes bacteria like Rhizobium. These are found in root nodules of leguminous plants like pea, gram. (ii) Free living forms- These include Azotobacter and clostridium. Azotobacter is aerobic bacterium and Clostridium is anaerobic bacterium since Clostridium is oxygen sensitive. Streptococci are gram-positive aerobic organisms that cause many disorders, including pharyngitis, pneumonia, wound and skin infections, sepsis, and endocarditis. Symptoms vary with the organ infected. Sequelae of infections due to group A beta-hemolytic streptococci may include rheumatic fever and glomerulonephritis. Answer : (d)
Q.39
Viral capsid is made of … .. [ MPPMT 2000]
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a) Carbohydrates
0%
b)Lipid
0%
c) Protein
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d) All the above
Explanation
Answer : (c)
Q.40
Some bacteria produce resting spores during unfavourable conditions. They are … [ JKCMEE 1992]
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a) Exospores
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b) Endospores
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c) Aplanospores
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d) Chlamydospores
Explanation
Answer : (b)
Q.41
“ Taxonomy without phylogeny is similar to bones without flesh” is the statement of … .. [ CBSE 1994]
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a) Oswald Tippo
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b) John Hutchinson
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c) Takhtajan
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d) Bentham and Hooker
Explanation
Answer : (c)
Q.42
Viruses posses … .. [ BHU 2008]
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a) DNA only
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b) Nucleic acid, DNA or RNA
0%
c) Protein only
0%
d) Nucleic acid and protein
Explanation
Answer : (d)
Q.43
Prokaryotic genetic material is .. .. [ CBSE 1999]
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a) Linear DNA+ histones
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b) Circular DNA + histones
0%
c) Linear DNA without histones
0%
d) Circular DNA without histones
Explanation
Answer : (d)
Q.44
Nitrosomonas and Nitrobacter convert … [ MPPMT 1991]
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a) Carbon dioxide to carbohydrates
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b) Ammonium ion into nitrate
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c) Nitrate ion into nitrogen molecule
0%
d) Nitrogen into nitrate
Explanation
Answer : (b)
Q.45
A bacterium with flagella all around is … .. [ AFMC 2001]
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a) Amphitrichous
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b) Lophotrichous
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c) Cephalotrichous
0%
d) Peritrichous
Explanation
Answer : (d)
Q.46
Nitrogen fixer soil organisms belong to … [ CBSE 1994]
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a) Mosses
0%
b) Bacteria
0%
c) Green Algae
0%
d) Soil Fungi
Explanation
Answer : (b)
Q.47
Sever Acute Respiratory Syndrome ( SARS) … .. [ AIIMS 2008]
0%
a) Affects non-vegetarians faster than vegetarians
0%
b) Is an acute form of asthma
0%
c) Is caused by variant of Common Cold Virus ( Corona Virus)
0%
d) Is caused by variant of Pneumococcus pneumonia
Explanation
Answer : (c)
Q.48
DNA of Escherichia coli is … [ CBSE 1998]
0%
a) ss and circular
0%
b) ss and linear
0%
c) ds and linear
0%
d) ds and circular
Explanation
Answer : (d)
Q.49
Spirulina is rich source of … [ Odisha 2009]
0%
a) Minerals
0%
b) Vitamins
0%
c) Proteins
0%
d) All the above
Explanation
Answer : (c)
Q.50
Cell wall of bacteria/cyanobacteria possesses … [ AMU 1994]
0%
a) Chitin
0%
b) Cellulose
0%
c) Murein/Mucopeptide
0%
d) Peptidoglycan and amino sugars
Explanation
Answer : (d)
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