Botany - Living World One Marks

11th Standard

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Biology

Time : 01:00:00 Hrs
Total Marks : 25
    25 x 1 = 25
  1. Which one of the following statement about virus is correct?

    (a)

    Possess their own metabolic system

    (b)

    They are facultative parasites

    (c)

    They contain DNA or RNA

    (d)

    Enzymes are present

  2. Identify the Archaebacterium

    (a)

    Acetobacter

    (b)

    Erwinia

    (c)

    Treponema

    (d)

    Methanobacterium

  3. Identify the correctly matched pair

    (a)

    Actinomycete - Late blight

    (b)

    Mycoplasma - Lumpy jaw

    (c)

    Bacteria - Crown gall

    (d)

    Fungi - Sandal spike

  4. Basidiomycetes do not possess this feature.

    (a)

    Clamp connection

    (b)

    Club Fungi

    (c)

    Dolipore septum

    (d)

    Lack sexual reproduction

  5. A plant growth promoter got from fungi is ___________

    (a)

    Rennet

    (b)

    Gibberellin

    (c)

    Ergot

    (d)

    Griseofulvin

  6. Organisms grow by __________

    (a)

    cell division

    (b)

    spore formation

    (c)

    fragmentation

    (d)

    vegetative propagation

  7. _________ do not growth.

    (a)

    Living organisms

    (b)

    Microorganisms

    (c)

    Dead organisms

    (d)

    All the above

  8. ______________ is a basic unit of life.

    (a)

    Atoms

    (b)

    Compounds

    (c)

    Soils

    (d)

    Cell

  9. Founder of modern Bacteriology _________________

    (a)

    Koch

    (b)

    Griffith

    (c)

    Lederberg

    (d)

    Gram

  10. Virus that infects bacteria is called __________

    (a)

    Mycophage

    (b)

    Lactophage

    (c)

    Bacteriophage

    (d)

    Cyanophage

  11. Which one of the following bacterium can cause crown gall disease in plants?

    (a)

    Bacillus

    (b)

    Clostridium

    (c)

    Agrobacterium tumefaciens

    (d)

    E.Coli

  12. A bacterial cell is covered by ____________

    (a)

    glycocalyx

    (b)

    flagellin

    (c)

    chitin

    (d)

    peptidoglycan

  13. Dermatophytes are fungi which cause infection in the __________

    (a)

    Head

    (b)

    Foot

    (c)

    Skin

    (d)

    Nail

  14. Cyanophages means:

    (a)

    Viruses infecting red algae

    (b)

     Viruses infecting brown algae

    (c)

    Viruses infecting blue green algae

    (d)

    Viruses infecting green algae

  15. Which among the bacteria breakdown hydrocarbons?

    (a)

    Pseudomonas putida

    (b)

    Lacto bacillus

    (c)

    Bifido bacterium

    (d)

    Nitrosomonas

  16. Asexual reproduction occurs by Regeneration ___________.

    (a)

    Planaria

    (b)

    Spirogyra

    (c)

    Yeast

    (d)

    Bacteria.

  17. Viruses have nucleic acid core surrounded by __________.

    (a)

    Protein coat

    (b)

    Lipid

    (c)

    Ammonia

    (d)

    Glucose

  18. Crystalline form of virus was first observed by ______ in 1935

    (a)

    Louis Pasteur

    (b)

    Ivanosky

    (c)

    Ivanosky

    (d)

    W.M.Stanley

  19. HIV is discovered by __________.

    (a)

    Luc Montagnier and Robert Gallo

    (b)

    W.M.Stanley

    (c)

    Ivanosky

    (d)

    Twort

  20. The genetic material in Reo viruses is ______________.

    (a)

    DS- RNA

    (b)

    SS - RNA

    (c)

    DS- DNA

    (d)

    SS - DNA

  21. Plant viruses have __________.

    (a)

    DNA

    (b)

    RNA

    (c)

    BothDNAand RNA

    (d)

    Coiled Nucleus

  22. Viroid is discovered by _____.

    (a)

    T.O.Diene

    (b)

    Twort

    (c)

    Randles

    (d)

    d'Herelle

  23. Prions are infections

    (a)

    Nucleic acid

    (b)

    Lipids

    (c)

    Proteins

    (d)

    Carbohydrates

  24. Four Kingdom System of classification was given by ___________.

    (a)

    Carl Linnaeus

    (b)

    Ernst Hackel

    (c)

    Copeland

    (d)

    R.H.Whittaker

  25. Ted tide is caused by____________.

    (a)

    Ooflagellate

    (b)

    Xanthophyceae

    (c)

    Dinoflgellate

    (d)

    Badlariophyta

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