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11th Standard Biology English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Three

11th Standard

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Biology

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. Identify the Archaebacterium

    (a)

    Acetobacter

    (b)

    Erwinia

    (c)

    Treponema

    (d)

    Methanobacterium

  2. ______________ is a capnophilic bacteria.

    (a)

    Campylobacter

    (b)

    Chlorobium

    (c)

    Chromatium

    (d)

    Clostridium

  3. The genetic material in Bacteriophage ___________.

    (a)

    ds RNA

    (b)

    ss RNA

    (c)

    ds DNA

    (d)

    ss DNA

  4. Mycoplasma is very small and its ranges from __________.

    (a)

    0.1-0.5

    (b)

    0.1-5

    (c)

    0.2-0.3

    (d)

    2-3

  5. Identify the criteria not used in classifying viruses by Baltimore __________ .

    (a)

    ss (or) ds

    (b)

    use of RT

    (c)

    capsid

    (d)

    sense or antisense

  6. The hydrogen donor of purple sulphur bacteria is ___________ .

    (a)

    H2S

    (b)

    thiosulphate

    (c)

    ethanol

    (d)

    acetic acid

  7. Endosperm in Gymnosperm is formed

    (a)

    At the time of fertilization.

    (b)

    Before fertilization.

    (c)

    After fertilization.

    (d)

    Along with the development of embryo .

  8. Siphonostele occurs in the pteridophyte _____

    (a)

    Selaginella

    (b)

    Marsilea

    (c)

    Equisetum

    (d)

    Lycopodium

  9. Curcuma amada, Curcuma domestica, Asparagus, Maranta are example of

    (a)

    Tuberous root

    (b)

    Beaded root

    (c)

    Moniliform root

    (d)

    Nodulose root

  10. Rearing of honey bee is called

    (a)

    Sericulture

    (b)

    Lac culture

    (c)

    Venniculture

    (d)

    Apiculture

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