KINGDOM-MONERA & ACELLULAR ORGANISM Q BANK

KINGDOM-MONERA & ACELLULAR ORGANISM Q BANK (questions bank). Question and answer based on strictly latest NCERT based pattern, and previous year NEET (AIPMT) question. chapter wise approach mcq is more useful for quick revision and increase speed for maintaining time period.

KINGDOM-MONERA & ACELLULAR ORGANISM Q BANK PDF

Kingdom-Monera & Viruses Class 11th Biology Question Bank

MCQS :-

KINGDOM-MONERA & VIRUSES

Q1) Which of the following are found in extreme saline conditions? (NEET 2017)

1. Archaebacteria
2. Eubacteria
3. Cyanobacteria
4. Mycobacteria

Q2) Viroids differ from viruses in having  (NEET 2017)

1. DNA molecules with protein coat
   
2. DNA molecules without protein coat
   
3. RNA molecules with protein coat
   
4. RNA molecules without protein coat
            

Q3) Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals & can survive without oxygen? (NEET 2017)

1. Bacillus
   
2. Pseudomonas
   
3. Mycoplasma
   
4. Nostoc

Q4) The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the (NEET 2016 PHASE I)

1. Thermoacidophiles
   
2. Methanogens
   
3. Eubacteria
   
4. Halophiles

Q5) Which of the following statements is wrong for viroids? (NEET 2016 PHASE I)

1. They are smaller than viruses
   
2. They cause infections
   
3. Their RNA is of high molecular weight
   
4. They lack a protein coat

Q6) Which one of the following statement is wrong? (NEET 2016 PHASE I)

1. Golden algae are also called desmids
   
2. Eubacteria are also called false bacteria
   
3. Phycomycetes are also called algal fungi
   
4. Cyanobacteria are also called blue-green algae

Q7) Methanogens belong to (NEET 2016 PHASE II)

1. Eubacteria
   
2. Archaebacteria
   
3. Dinoflagellates
   
4. Slime molds

Q8) Chromatophores take part in (CBSE AIPMT 2015)

1. Photosynthesis
   
2. Growth
   
3. Movement
   
4. Respiration

Q9) Select the wrong statement (CBSE AIPMT 2015) 

1. The viroids were discovered by DJ lvanowski
   
2. WM Stanley showed that viruses could be crystallized
   
3. The term ‘Contagium vivum fluidum’ was coined by MW Beijerinek
   
4. Mosaic disease in tobacco & AIDS in a human being is caused by viruses

Q10) The structure that helps some bacteria to attach to rocks &/or host tissues are (CBSE AIPMT 2015)

1. Rhizoids
   
2. Fimbriae
   
3. Mesosomes
   
4. Holdfast  

Q11) Archaebacteria differ from eubacteria in (CBSE AIPMT 2014)

1. Cell membrane structure
   
2. Mode of nutrition
   
3. Cell shape
   
4. Mode of reproduction 

Q12) Which of the following shows coiled RNA strand & capsomeres? (CBSE AIPMT 2014)

1. Polio virus
   
2. Tobacco mosaic virus
   
3. Measles virus
   
4. Retrovirus 

Q13) Pigment-containing membranous extensions in some cyanobacteria are (CBSE AIPMT 2012)

1. Heterocysts
   
2. Basal bodies
   
3. Pneumatophores
   
4. Chromatophores 

Q14) Which of the following are likely to be present in deep sea water? (CBSE AIPMT 2012)

1. Archaebacteria
   
2. Eubacteria
   
3. Blue-green algae
   
4. Saprophytic fungi

Q15) The cyanobacteria are also referred to as  (CBSE AIPMT 2012)

1. Protists
   
2. Golden algae
   
3. Slime moulds
   
4. Blue-green algae 

Q16) Which statement is wrong for viruses?  (CBSE AIPMT 2012)

1. All are parasites
   
2. All of them have helical symmetry
   
3. They have the ability to synthesize nucleic acids & proteins
   
4. Antibiotics have no effect on them 

Q17) Nuclear membrane is absent in  (CBSE AIPMT 2012)

1. Penicillium
   
2. Agaricus
   
3. Volvox
   
4. Nostoc

Q18) Maximum nutritional diversity is found in the group  (CBSE AIPMT 2010)

1. Fungi
   
2. Animalia
   
3. Monera
   
4. Plantae

Q19) In eubacteria, a cellular component that resembles eukaryotic cells is (CBSE AIPMT 2011)

1. Nucleus
   
2. Ribosomes
   
3. Cell wall
   
4. Plasma membrane

Q20) Organisms called methanogens are most abundant in a (CBSE AIPMT 2011)

1. Cattle yard
   
2. Polluted stream
   
3. Hot spring
   
4. Sulfur rock

Q21) Virus envelope is known as (CBSE AIPMT 2010)

1. Capsid
   
2. Virion
   
3. Nucleoprotein
   
4. Core

Q22) Some hyperthermophilic organisms that grow in highly acidic habitats belong to the two groups called (CBSE AIPMT 2010)

1. Eubacteria & archaea
   
2. Cyanobacteria & diatoms
   
3. Protists & mosses
   
4. Liverworts & yeasts

Q23) TO Diener discovered a (CBSE AIPMT 2009)

1. Free infectious RNA
   
2. Free infectious DNA
   
3. Infectious protein
   
4. Bacteriophage

Q24) Thermococcus, Methanococcus & Methanobacterium exemplify (CBSE AIPMT 2008)

1. Archaebacteria that contain protein homologous to eukaryotic core histones
   
2. Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled
   
3. Bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria
   
4. Bacteria that contain a cytoskeleton & ribosomes

Q25) Bacterial leaf blight of rice is caused by a species of (CBSE AIPMT 2008)

1. Xanthomonas
   
2. Pseudomonas
   
3. Alternaria
   
4. Erwinia

Q26) Which one of the following statements about Mycoplasma is wrong? (CBSE AIPMT 2007)

1. They are also called PPLO
   
2. They are pleomorphic
   
3. They are sensitive to penicillin
   
4. They cause disease in plants

Q27) Barophilic prokaryotes (CBSE AIPMT 2005)

1. Grow slowly in highly alkaline frozen takes at high altitudes
   
2. Occur in water containing a high concentration of barium hydroxide
   
3. Grow & multiply in very deep marine sediments
   
4. Readily grown & divides in seawater enriched in any soluble salt of barium

Q28) Viruses that infect bacteria, multiply & cause their lysis are called (CBSE AIPMT 2004)

1. Lysozymes
   
2. Lytic
   
3. Lipolytic
   
4. Lysogenic

Q29) Which of the following statement is not true for retroviruses? (CBSE AIPMT 2004)

1. DNA is not present at any stage in the life cycle of retroviruses
   
2. Retroviruses carry a gene for RNA dependent DNA polymerase
   
3. The genetic material in mature retroviruses is RNA
   
4. Retroviruses are causative agents for certain kinds of cancer in man

Q30) Viruses are no more ‘alive’ than isolated chromosomes because (CBSE AIPMT 2003)

1. Both require the environment of a cell to replicate
   
2. They require both RNA & DNA
   
3. They both need food molecules
   
4. They both require oxygen for respiration

Q31) Which one of the following statements about viruses is correct? (CBSE AIPMT 2003)

1. A nucleic acid of viruses is known as a capsid
   
2. Viruses possess their own metabolic system
   
3. All viruses contain both RNA & DNA
   
4. (Viruses are obligate parasites

Q32) Chromosomes in a bacterial cell can be 1-3 in number & (CBSE AIPMT 2003)

1. Can be circular as well as linear within the same cell
   
2. Are always circular
   
3. Are always linear
   
4. Can be either circular or linear, but never both within the same cell

Q33) Tobacco mosaic virus is a tubular filament of size (CBSE AIPMT 2003)

1. 700×30nm
   
2. 300×10nm
   
3. 300×5nm
   
4. 300×18nm

Q34) Organism which obtains energy by the oxidation of reduced inorganic compound are called (CBSE AIPMT 2002)

1. Homoautotrophs
   
2. Chemoautotrophs
   
3. Saprozoic
   
4. Coproheterotrophs

Q35) In bacteria, a plasmid is (CBSE AIPMT 2002)

1. Extra- chromosomal material
   
2. Main DNA
   
3. Non-functional DNA
   
4. Repetitive gene

Q36) Plasmid is (CBSE AIPMT 2000,2001)

1. Fragment of DNA which acts as a vector
   
2. The fragment which joins two genes
   
3. mRNA which acts as a carrier
   
4. Autotrophic fragment

Q37) Interferons are synthesized in response to (CBSE AIPMT 2001)

1. Mycoplasma
   
2. Bacteria
   
3. Viruses
   
4. Fungi

Q38) What is true for archaebacteria? (CBSE AIPMT 2001)

1. All halophiles
   
2. All photosynthetic
   
3. All fossils
   
4. Oldest living beings

Q39) Cauliflower mosaic virus contains (CBSE AIPMT 2001)

1. ssRNA
   
2. dsRNA
   
3. dsDNA
   
4. ssDNA

Q40) What is true for cyanobacteria? (CBSE AIPMT 2001)

1. Oxygenic with nitrogenase
   
2. Oxygenic without nitrogenase
   
3. Non-oxygenic with nitrogenase
   
4. Non-oxygenic without nitrogenase

Q41) What is true for photolithotrophs? (CBSE AIPMT 2001)

1. Obtain energy from radiations & hydrogen from organic compounds
   
2. Obtain energy from radiations & hydrogen from inorganic compounds
   
3. Obtain energy from organic compounds
   
4. Obtain energy from inorganic compounds

Q42) Small proteins produced by vertebrate cells naturally in response to viral infections & which inhibit multiplication of viruses are called (CBSE AIPMT 2000)

1. Immunoglobulins
   
2. Interferons
   
3. Antitoxins
   
4. Lipoproteins

Q43) Photosynthetic bacteria have pigments in (CBSE AIPMT 1999)

1. Leucoplasts
   
2. Chloroplasts
   
3. Chromoplasts
   
4. Chromatophores

Q44) A few organisms are known to grow & multiply at temperatures of 100-105°C. They belong to (CBSE AIPMT 1998)

1. Marine archaebacteria
   
2. Thermophilic sulphur bacteria
   
3. Hot—spring blue-green algae (cyanobacteria
   
4. Thermophilic, subaerial fungi

Q45) The main role of bacteria in the carbon cycle involves (CBSE AIPMT 1998)

1. Photosynthesis
   
2. Chemosynthesis
   
3. Digestion or breakdown of organic compounds
   
4. Assimilation of nitrogenous compounds

Q46) The hereditary material present in the bacterium Escherichia coli is (CBSE AIPMT 1997,98)

1. Single-stranded DNA
   
2. Deoxyribose sugar
   
3. Double stranded DNA
   
4. Single stranded RNA

Q47) Which one of the following statements about viruses is correct? (CBSE AIPMT 1997)

1. Viruses possess their own metabolic system
   
2. Viruses contain either DNA or RNA
   
3. Viruses are facultative parasites
   
4. Viruses are readily killed by antibiotics

Q48) The site of respiration in bacteria is (CBSE AIPMT 1997)

1. Episome
   
2. Mesosome
   
3. Ribosome
   
4. Microsome 

Q49) Influenza virus has (CBSE AIPMT 1996)

1. DNA
   
2. RNA
   
3. Both (a) & (b)
   
4. Only proteins & no nucleic acids

Q50) In bacterial chromosomes, the nucleic acid polymers are (CBSE AIPMT 1996)

1. Linear DNA molecule
   
2. Circular DNA molecule
   
3. Of two types- DNA & RNA
   
4. Linear RNA molecule 

ANSWERS

1. A  Archaebacteria
   
2. D  RNA molecules without protein coat
   
3. C  Mycoplasma
   
4. B  Methanogens
   
5. C  Their RNA is of high molecular weight
   
6. B  Eubacteria are also called false bacteria
   
7. B  Archaebacteria
   
8. A  Photosynthesis
   
9. A  The viroids were discovered by DJ Ivanowski
   
10. B  Fimbriae
    
11. A  Cell membrane structure
    
12. B  Tobacco mosaic virus
    
13. D  Chromatophores
    
14. A  Archaebacteria
    
15. D  Blue-green algae
    
16. B  All of them have helical symmetry
    
17. D  Nostoc
    
18. C  Monera
    
19. D  Plasma membrane
    
20. A  Cattle yard
    
21. A  Capsid
    
22. A  Eubacteria & archaea
    
23. A  Free infectious RNA
    
24. A  Archaebacteria that contain protein homologous to eukaryotic core histones
    
25. A  Xanthomonas
    
26. C  They are sensitive to penicillin
    
27. C  Grow & multiply in very deep marine sediments
    
28. B  Iytic
    
29. A  DNA is not present at any stage in the life cycle of retroviruses
    
30. A  Both require the environment of a cell to replicate
    
31. D  Viruses are obligate parasites
    
32. B  Are always circular
    
33. D  300×18nm
    
34. B  Chemoautotrophs
    
35. A  Extra-chromosomal material
    
36. A  Fragment of DNA which acts as a vector
    
37. C  Viruses
    
38. D  Oldest living beings
    
39. C  dsDNA
    
40. A  Oxygenic with nitrogenase
    
41. B  Obtain energy from radiations & hydrogen from inorganic compounds
    
42. B  Interferons
    
43. D  Chromatophores
    
44. A  Marine archaebacteria
    
45. C  Digestion or breakdown of organic compounds
    
46. C  Double stranded DNA
    
47. B  Viruses contain either DNA or RNA
    
48. B  Mesosomes
    
49. B  RNA
    
50. B  circular DNA molecule
    

COMPLETE