Q.1
In the five kingdom classification Euglena has been placed in … [ RPMT 2011]
  • a) Fungi
  • b) Protista
  • c) Plantae
  • d) Archaea
Q.2
A bacterial cell divides once every minute. It takes one hour to fill a cup. How much time will it take to fill half cup … [ KCET 2001]
  • a) 59 minutes
  • b) 30 minutes
  • c) 29 minutes
  • d) 20 minutes
Q.3
Which one contains double stranded RNA … [ Odisha 2004]
  • a) TMV
  • b) Reovirus
  • c) Φ × 174
  • d) Cauliflower Mosaic Virus
Q.4
Which is absent in prokaryotes? .. [ RPMT 1995]
  • a) Nuclear envelope
  • b) Golgi apparatus
  • c) Mitochondria
  • d) All the above
Q.5
Select the correct combinations of statements( a-d) regarding the characteristics of certain organisms [C.B.S.E. mains 2010] a) Methanogens are archaebacteria which produce methane in marshy areas b) Nostoc is a filamentous blue green alga which fixes atmospheric nitrogen c) Chemosynthesis autotrophic bacteria synthesize cellulose from glucose d) Mycoplasma lacks a cell wall and can survive without oxygen The correct statements are
  • a) b, c
  • b) a,b,c
  • c) b,c,d
  • d) a,b,d
Q.6
Heating food and water will check diseases except … [ Odisha 2003] Explanation is provided, please click on
  • a) Salmonella infection
  • b) Cholera
  • c) Hepatitis –B
  • d) Botulism
Q.7
Tetanus is caused by … .. [ CPMT 2004 ]
  • a) Bacterium
  • b) Virus
  • c) Fungi
  • d) Mycoplasma
Q.8
Comma shaped bacteria are … [ AFMC 2001]
  • a) Bacilli
  • b) Spirillum
  • c) Vibrio
  • d) Cocci
Q.9
Which one belongs to monera? … .. [ CBSE 1990]
  • a) Amoeba
  • b) Escherichia
  • c) Gelidium
  • d) Spirogyra
Q.10
Blue-green algae are called cyanobacteria because they … [ MPPMT 2012]
  • a) Are not green
  • b) Do not have nucleus
  • c) Do not produce gametes
  • d) Are as small as bacteria
Q.11
Coliphage φ×174 virus contains .. .. [ AIIMS 1991]
  • a) Single stranded RNA
  • b)Double stranded RNS
  • c) Single stranded DNA
  • d) Double Stranded DNA
Q.12
Shape of Staphylococcus bacteria is
  • a) Spherical
  • b) Oval
  • c) Elongated
  • d) Cubical
Q.13
Genetic material of HIV is … .. [ JKCMEE 2004 ]
  • a) ss DNA
  • b) ss RNA
  • c) ds RNA
  • d) ds DNA
Q.14
Some hyperthermophilic organisms that grow in highly acidic (pH2) habitats belong to two groups ( C.B.S.E 2010)
  • a) Cyanobacteria and diatoms
  • b) Protists and mosses
  • c) Liverworts and yeasts
  • d) Eubacteria and archaea
Q.15
Which one is present in prokaryotes? … [ Bih. PMT 1995]
  • a) Nucleus
  • b) Golgi apparatus
  • c) Mitochondria
  • d) None of the above
Q.16
Which is absent in bacteria … [ CPMT 2003]
  • a) Cell wall
  • b) Mesosome
  • c) Mitochondria
  • d) RNA
Q.17
T.B. is produced by … .. [ JIPMER 1990]
  • a) Mycobacterium species
  • b) Aspergillus species
  • c) Clostridium species
  • d) Vibrio species
Q.18
Select the correct matches i) Nitrosomonas – nitrite to nitrate ii) Thiobacillus – denitrification iii) Nostoc – free living nitrogen fixer iv) Azotobacter – anaerobic nitrogen fixer
  • a) i and ii
  • b) ii and iii
  • c) I and iii
  • d) iii and iv
Q.19
An organism without true nucleus is … [ EAMCET 1995]
  • a) Bacterium
  • b) Archaebacterium
  • c) Cyanobacterium
  • d) All the above
Q.20
A filamentous nitrogen fixing bacterium is present in root nodules of flowering plants. .. [ CBSE 2007]
  • a) Cicer arietinum
  • b) Casuarina equisetifolia
  • c) Cycas revoluta
  • d) Crotalaria juncea
Q.21
Rod-shaped bacteria are called … [ Odisha 2007]
  • a) Cocci
  • b) bacilli
  • c) Spirillum
  • d) Vibrio
Q.22
In mycoplasma (PPLO) the plasmalemma is rich in…. [ Kerala 2001]
  • a) Cholesterol
  • b) Glycogen
  • c) Cellulose
  • d) Myosin
Q.23
Viral genome that has been double integrated and incorporated with bacterial genome is called .. .. [ BHU 2006]
  • a) DNA
  • b) Prophage
  • c) RNA
  • d) Both B and C
Q.24
Which one takes part in nitrogen fixation? …[ MPPMT 1995]
  • a) Nitrosococcus
  • b) Nitrosomonas
  • c) Nitrobacter
  • d) Rhizobium
Q.25
Penicillin has inhibitory effect over bacteria by … [ Odisha 2006]
  • a) Destruction of nucleus
  • b) Inhibition of cell wall synthesis
  • c) Stopping entrance of antibody
  • d) None of the above
Q.26
Bacteria that are smallest in size are … [ Manipur 2006]
  • a) Bacilli
  • b) Cocci
  • c) Spirilla
  • d) Vibrios
Q.27
In bacteria the respiratory enzymes are situated in the part … .. [ PMT 1997]
  • a) Cell membrane
  • b) Cytoplasm
  • c) Mitochondria
  • d) Ribosomes
Q.28
Which is prokaryote? … [ AMU 1997]
  • a) Rhizopus
  • b) Spirogyra
  • c) Nostoc
  • d) Saccharomyces
Q.29
Nuclear material of bacterial cell is known as … [ MPPMT 2001]
  • a) Nucleus
  • b) Nucleolus
  • c) Plasmid
  • d) Nucleoid
Q.30
Which of the following is not of fungal origin ..[ Odisha 2012]
  • a) Calvacin
  • b) Citric acid
  • c) Ergotamine
  • d) Tetracycline
Q.31
The condition of having a single flagellum at one end of a bacterium is … [ AMU 1997]
  • a) Peritrichous
  • b) Amphitrichous
  • c) Lophotrichous
  • d) Monotrichous
Q.32
Teichoic acid is present in cell wall of …. [ MPPMT 2000]
  • a) Bacteriophage
  • b) Mycoplasma
  • c) Nostoc
  • d) Pneumococcus
Q.33
Process of reverse transcription was discovered by … ..
  • a) Garrod
  • b) Temin and Baltimore
  • c) Beadle and Tatum
  • d) Marshall and Nirenberg
Q.34
Pick up the wrong statement : [ ReAIPMT 2015]
  • a) Nuclear membrane is present in Monera
  • b) Cell wall is absent in Animalia
  • c) Protista have photosynthetic and heterotrophic modes of nutrition
  • d) Some fungi are edible
Q.35
Many bacteria possess hairy appendages on their cell walls. They are. … [ AFMC 1996]
  • a) Hairs
  • b) Flagella
  • c) Cilia
  • d) Fimbriae
Q.36
Alternation of generations is not found in bacterium E. coli due to lack of … [ RPMT 2006]
  • a) Syngamy
  • b) Reduction division
  • c) Nucleus
  • d) Chromosomes
Q.37
Common cold is not cured by antibiotic as it is … .. [ CBSE mains 2011]
  • a) Caused by virus
  • b) Caused by Gram (+) bacterium
  • c) Caused by Gram (-) bacterium
  • d) Not an infectious disease
Q.38
Gram(-) bacterium is … [ DPMT 2011]
  • a) Streptomyces coelicolor
  • b) Escherichia coli
  • c) Ampycolatopsis orientalis
  • d) Bacillus subtilis
Q.39
A bacterium divides every 35 minutes. If a culture contains 105 cell/ml is grown for 175 minutes, what will be cell concentration after that period … [ BHU 2008]
  • a) 175 × 105
  • b) 35 × 105
  • c) 5 × 105
  • d) 32 × 105
Q.40
Curing of Tea leaves is brought about by the activity of …… [ CBSE 2006]
  • a) Fungi
  • b) Bacteria
  • c) Viruses
  • d) Mycorrhiza
Q.41
Streptomycin is effective against bacteria … [ AMU 1999]
  • a) Gram (+)
  • b) Gram (-)
  • c) Gram neutral
  • d) both a and b
Q.42
True nucleus and mitochondria are absent in…. [ RPMT 2000]
  • a) Cyanophyceae
  • b) Chlorophyceae
  • c) Myxomycetes
  • d) Azolla
Q.43
For retting of Jute, the fermenting microbe is … [ CBSE 2005]
  • a) Methanogenic bacteria
  • b) Butyric acid bacteria
  • c) Helicobacter pylori
  • d) Streptococcus lactis
Q.44
Plasmids are found naturally in … [ KCET 2001 ]
  • a) Viruses
  • b) Chloroplasts
  • c) Chromosomes
  • d) Bacteria
Q.45
Bacteria are considered as plants as they … [ BHU 2008]
  • a) Are green in colour
  • b) Have rigid cell wall
  • c) Have chlorophyll
  • d) Have stomata
Q.46
Bacteria having comma-like single curve in their body are …. .. [ CET Chd 2003]
  • a) Bacilli
  • b) Cocci
  • c) Vibrio
  • d) Spirilla
Q.47
Nucleic acid does not occur in … .. [ RPMT 2011]
  • a) Prion
  • b) Viroid
  • c) Virus
  • d) Mycoplasma
Q.48
What is genophore … [ WB 2011]
  • a) DNA in prokaryotes
  • b) DNA and RNA in prokaryotes
  • c) DNA and proteins in prokaryotes
  • d) RNA in prokaryotes
Q.49
Virus was discovered by … .. [ AFMC 1996]
  • a) Stanley
  • b) Ivanowski
  • c) Herelle
  • d) Bjierinck
Q.50
Multicellular fragment of a blue green alga capable of growth into new plant is … [ JIPMER 2000]
  • a) Hormocyst
  • b) Trichome
  • c) Trichogyne
  • d) Hormogonium
0 h : 0 m : 1 s