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11th Standard Biology English Medium Free Online Test 1 Mark Questions 2020 - Part Two

11th Standard

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Biology

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

    Answer all the questions

    10 x 1 = 10
  1. _________________ are obligate aerobes.

    (a)

    Streptococcus

    (b)

    Clostridium

    (c)

    Micrococcus

    (d)

    E. Coli

  2. Each virus posses only one type of nucleic acid:

    (a)

    Either DNA or RNA

    (b)

    DNA only

    (c)

    Neither DNA nor RNA

    (d)

    RNA only

  3. Mycorrhizae are the example of

    (a)

    Fungitasis

    (b)

    Amensalism

    (c)

    Antibiosis

    (d)

    Mutualism

  4. Rice tungro is caused by ___________ .

    (a)

    fungi

    (b)

    bacteria

    (c)

    mycoplasma

    (d)

    viruses

  5. Colour revealed by Gram positive bacteria after Gram staining is _________ .

    (a)

    red

    (b)

    indigo

    (c)

    dark violet

    (d)

    blue

  6. In Agaricus, _________ type of sexual reproduction occurs.

    (a)

    spermatization

    (b)

    somatogamy

    (c)

    oogamy

    (d)

    isogamy

  7. Enzymes that catalyse interconversion of optical, geometrical or positional isomers are

    (a)

    Ligases

    (b)

    Lyases

    (c)

    Hydrolases

    (d)

    Isomerases

  8. Choose the wrong statement among the following

    (a)

    In earthworm, a single male genital pore is present.

    (b)

    Setae help in locomotion of earthworms.

    (c)

    Muscular layer in the body wall of earthworm is made up of only circular muscles

    (d)

    Typhlosole is part of the intestine of earthworm

  9. The Tidal Volume of a normal person is

    (a)

    800 mL

    (b)

    1200 mL

    (c)

    500 mL

    (d)

    1100 - 1200 mL

  10. Which part of the human brain is concerned with the regulation of body temperature?

    (a)

    Cerebellum

    (b)

    Cerebrum

    (c)

    Medulla oblongata

    (d)

    Hypothalamus

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