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

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 considered as pollution indicators.

    (a)

    Mycorrhiza

    (b)

    Actinomycete

    (c)

    Lichens

    (d)

    Cyanobacteria

  2. Mad cow disease is caused by ______________

    (a)

    Prions

    (b)

    Virion

    (c)

    Viroid

    (d)

    Phage

  3. An example of photoautotrophic bacteria is ___________

    (a)

    Nitrosomonas

    (b)

    Nitrobacter

    (c)

    Chlorobium

    (d)

    Spirillum

  4. _______ is an intact infective virus particle which is non - replicating outside a host cell.

    (a)

    Virus

    (b)

    Viroid

    (c)

    Virion

    (d)

    Virusoids

  5. Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as wen as animals and can survive without oxygen?

    (a)

    Bacillus

    (b)

    Pseudomonas

    (c)

    Mycoplasma

    (d)

    Nostoc

  6. Which of the following have an open circulatory system?

    (a)

    Frog

    (b)

    Earthworm

    (c)

    Pigeon

    (d)

    Cockroach

  7. During inspiration, the diaphragm

    (a)

    expands

    (b)

    unchanged

    (c)

    relaxes to become dome-shaped

    (d)

    contracts and flatten

  8. At the venous end of the capillary bed, the osmotic pressure is

    (a)

    Greater than the hydrostatic pressure

    (b)

    Result in net outflow of fluids

    (c)

    Results in net absorption of fluids

    (d)

    No change occurs

  9. Appendicular skeleton is

    (a)

    girdles and their limbs

    (b)

    vertebrae

    (c)

    skull and vertebral column

    (d)

    ribs and sternum

  10. Which one of the following is not an endemic species of earthworm?

    (a)

    Perionyx

    (b)

    Lampito

    (c)

    Eudrillus

    (d)

    Octochaetona

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