Chapter test-4-biology-biological classification

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AIIMS

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Q1. A B C D  The symbiotic relationship of algae and fungus is found in[1997]

            (a) lichen                                               

            (b) mycorrhiza

(c)  pneumatophore    

(d) bacteriophage

Q2. A B C D The virus that infects bacteria is called [1997]

a)   cyanophage            

b)   mycophage

(c)   bacteriophage       

(d) none of these

Q3. A B C D Citrus canker is caused by[1997]

        a)bacterium                    

       (b) fungus

(c)    alga                          

(d) virus

Q4. A B C D Which of the following is a cyanobacterium ? [1997]

(a) Nostoc                      

(b) Chara                    

(c)  E. coli                      

(d) Polysiphonia

Q5. A B C D Virus has[1998]

      (a)DNA

      (b)RNA

(c) both (a) and (b)

(d) either DNA or RNA

Q6. A B C D Hor mogonia are vegetative reproductive structure of[1998]

      (a)Spirogyra                    

      (b) Ulothrix

(c) Oscillatoria           

(d) Yeast

Q7. A B C D Which is a unicellular fungus ?[1998]

      (a)Yeast                           

      (b) E.coli

(c)    Nostoc                     

(d) Albugo

Q8. A B C D Bacterial cell wall is made up of[1999]

       (a )xylan                         

       (b) chitin

(c)  cellulose                  

(d) murein

Q9. A B C D Cell wall is absent in[2000]

   (a)  Amoeba                     

   (b) Chara

(c)    yeast                        

(d) E. coli

Q10. A B C D Which of the following is a fungus?[2000]

    (a)Nostoc                         

    (b)    E. coli

  (c)    Yeast                       

  (d)    Chara

Q A B C D 11. Powdery mildews of crops are caused by [2001]

      (a) bacteria                      

      (b) ascomycetes

(c)    basidiomycetes     

(d) phycomycetes

Q12. A B C D Pullorum disease of poultry is caused by [2001]

(a) Mycobacterium         
(b) Salmonella

(c)    Clostridium            
(d) Haemophilus

Q13. A B C D Viroids have[2003]

(a) single stranded RNA not enclosed by protein coat.

         (b) single stranded DNA not enclosed by protein coat.

            (c)   double stranded DNA enclosed by protein coat.

            (d) double stranded RNA enclosed by protein coat.

Q14. A B C D Myxomycetes are[2006]

(a)  saprobes or parasites, having mycelia, asexual reproduction by fragmentation.

(b) slimy mass of multinucleate protoplasm, having pseudopodia like structures for engulfing food, reproduction through fragmentation or zoospores.

(c)prokaryotic organisms, cellular or acellular, saprobes or autotrophic, reproduce by binary fission.

(d) eukaryotic, single-celled or filamentous, sapr obes or autotroph ic, asexual reproduction by division of haploid individuals, sexual reproduction by fusion of two cells or their nuclei.

Q15. A B C D Among rust, smut and mushroom all the three[2006]

(a) are pathogens    

    

(b) are saprobes

(c) bear ascocarps       

(d) bear basidiocarps

Q16. A B C D "Fairy  rings" in lawn is result from outward,spreading circles of mycelia of mushrooms producing, at their periphery, fruiting bodies called           [2009]

(a)ascocarps     

              

(b) basidiocarps

(c)  sorocarps      

           

(d) pseudocarps

Q17. A B C D Which one of the following statements is correct?           [2010]

(a)     Prions are the smallest free-living cells.

(b) The cell wall of Mycoplasmas is made up of amino sugars.

©Viroids consist of single-stranded RNA molecule.

(d) Rickettsiae lack cell wall.

Q18. A B C D Bacterial cell wall is composed of peptidoglycan, a complex of oligosaccharides and

proteins. The oligosaccharide component consist of [2010]

(a)linear chain of alternating NAG and NAM linked by a (1 – 4) linkage.

(b)linear chains of alternating NAG and NAM linked by þ (1 – 4) linkage.

©linear chain of glucose linked by þ (1 – 4) linkage.

(d)linear chain of glucose linked by a (1 – 4) likage.

Q19 A B C D Choose the correct names of the different bacteria according to their shapes.              [2013]

(a)A – Cocci, B – Bacilli, C – Spirilla, D – Vibrio

(b)A – Bacilli, B – Cocci, C – Spirilla, D – Vibrio

©A – Spirilla, B – Bacilli, C – Cocci, D – Vibrio

(d)A – Spirilla, B – Vibrio, C – Cocci, D – Bacilli

Q20. A B C D Wh ich pair of th e following belongs to Basidiomycetes?      [2013]

(a)Puffballs and Claviceps

(b)Peziza and Alternaria

©Morchella and mushrooms

(d)Birds nest fungi and puffballs

Q21 A B C D Match column-I with column-II and select the option .    [2014]

Column-I                                            Column-II

(Classes of fungi)                (Common name)

A.        Phycomycetes            I. Sac fungi

B.        Ascomycetes               II. Algal fungi

C.        Basidiomycetes          III. Fungi imperfecti

D.        Deuteromycetes         IV. Club fungi

         The correct combination is –

                        (a)               A – II; B – I; C – IV; D – III

                        (b)               A – II; B – IV; C – I; D – III

                        (c)                A – IV; B – I; C – II; D – III

           (d)               A – IV; B – III; C – II; D – I

Q22. A B C D Which of the following is correct about the slime mould ? [2015]

(i)                   Its thalloid body, Plasmodium h as pseudopodia for locomotion and engulfing organic matter.

(ii)                 Durin g un favourable condition s Plasmodium differentiates and produces fruiting bodies, sporangium.

             (iii)               Spores posses no true cell wall.

             (iv)             They are dispersed by air current.

           (v)               Being extremely resistant, spores survive for many years.

           (vi)             Plasmodium can grow upto several feet.                                                     

 Choose the answer from the following options

                       (a)               (i),(ii), (iv), (v) and (vi)

                       (b)               (i),(ii) and (iii)

                       (c)                (i),(ii), (iii) and (vi)

                       (d)               (ii),(iii) and (vi)

Q23. A B C D     (i)           Green algae occur in fresh water,                      brackish water, salt water.

             (ii)                 Habitat of Brown algae-fresh water (rare), brackish water, salt water

           (iii)               Some red algae are found in fresh water, mostly occur in salt water, some are in brackish water.

                        (iv)             Most of the red algae are multicellular.

         (v)               Red alga may occur in both well lighted regions close to water-surface and also at great depths in oceans wher e ligh t penetration is little.

                      (vi)             Cell wall of red algae consists of cellulose + agar.

         (vii)          2 – 8, equal and apical flagella in green algae         [2015]

                         (a)               All are correct

                         (b)               All are false             

                         (c)                (i) and (vi) are correct

                         (d)               (ii), (iii) and (v) are correct

Q24. A B C D Fungi are filamentous with the exception of "X" which is unicellular. Identify X.[2017]

               (a)    Yeast                                  

              (b) Albugo

       (c)    Mucor                                

       (d) Lichen

Q25 A B C D Which of the following statements is not correct for viruses?          [2017]

a. Viruses are obligate parasites.

b. Viruses can multiply only when they are inside the living cells.

c. Viruses cannot pass through bacterial filters.

d. Viruses are made up of protein and DNA or RNA (never both DNA and RNA).

Q26. A B C D E Which of the following statements regarding cyanobacteria is incorrect?   [2017]

a. It is also called blue green algae.

b.  They are chemosynthetic heterotrophs.

c. It forms blooms in polluted water bodies.

d. It is unicellular, colonial or filamentous, marine or terrestrial bacteria.

Directions for further MCQ : These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following five responses.

(a)                  If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

(b)                  If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

(c)                   If the Assertion is correct but Reason is incorrect.

(d)                  If both the Assertion and Reason are incorrect.

(e)                   If the Assertion is incorrect but the Reason is correct.

Q27. A B C D E Assertion: Viruses are not considered organism.

       Reason: Viruses are nucleoproteins and lack cell organelle, etc. c1998]

Q28. A B C D E Assertion : Bacteria have three basic shapes, [2000]

i.e., round , rod, spiral.

Reason : Cocci and Bacilli may form clusters or chain of a definite length.             

Q29. A B C D E Assertion : Aflatoxins are produced by

Aspergillus flavus.

Reason : These toxins are useful to mankind.

[2000]

Q30. A B C D E Assertion : Escherichia coli, Shigella sp. and Salmonella sp. are all responsible for diarrhoeal diseases.[2006]

Reason : Dehydration is common to all types of diarrhoeal diseases and adequate supply of fluids and electrolytes should be ensured.

Q31. A B C D E Assertion : Gram-negative bacteria do not retain the stain when washed with alcohol.

Reason : The outer face of the outer membrane of gram-negative bacteria con tain s lipopolysaccharides, a part of which is integrated into the membrane lipids.                [2006]

Q32. A B C D E Assertion : Neurospora is commonly called water mould.

Reason : It belongs to basidomycetes fungi.[2007]

Q33. A B C D E Assertion : Chemosynthesis is an autotrophic nutrition.

Reason : Chemoautotrophs contain chlorophyll pigments.[2009]

Q34. A B C D E Assertion : TMV is a virus which causes mosaic disease.

Reason : TMV has RNA as genetic material.

[2001, 2017]

Q35 A B C D E Assertion : Bacteria are prokaryotic.

Reason : Bacteria do not possess true nucleus and membrane bound cell organelles.

Q36. A B C D E Assertion : Bacterial photosynthesis occurs by utilizing wavelength longer than 700 nm.

 Reason : Here reaction centre is P-890.

Q37. A B C D E Assertion : Sandfly transmits Kala-azar.

Reason : In Kala-azar, the parasite damages the brain.

Q38. A B C D E Assertion : Escherichia coli, Shigella sp. and Salmonella sp. are all responsible for diarrhoeal diseases.

Reason : Dehydration is common to all types of diarrhoeal diseases and adequate supply of fluids and electrolytes should be ensured.

Q39. A B C D E Assertion : Gram-negative bacteria do not retain the stain when washed with alcohol.

Reason : The outer face of the outer membrane of gram-negative bacteria con tain s lipopolysaccharides, a part of which is integrated into the membrane lipids.

Q40. A B C D E Assertion: Two kingdom classification was insufficient.

Reason: Majority of organisms failed to fall into eith er of th e categories in two kingdom classification.

Q41. A B C D E Assertion: Archaebacteria are able to survive in harsh habitats.

Reason: Archaebacteria survive in extreme conditions due to the presence of peptidoglycan in their cell wall.

Q42. Assertion: Several ruminant animals contain methanogens within their gut.

Reason: Methanogens help in the production of methane from dung of ruminants.

Q43. A B C D E Assertion: The nitrogen-fixing bacteria in leguminous plant nodules live as symbionts. Reason: Leg-haemoglobin synthesized by leguminous plants protect bacteria.

Q44. A B C D E Assertion: Bacteria are classified among plants.

Reason: They have cell walls.

Q45. A B C D E Assertion: Bacteria do not always move with the help of flagella.

Reason: Rotary motion of flagellum is employed by flagellated bacteria for movement.

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