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

11th Standard

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Biology

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

    Answer all the questions

    10 x 1 = 10
  1. The correct statement regarding Blue green algae is

    (a)

    lack of motile structures

    (b)

    presence of cellulose in cell wall

    (c)

    absence of mucilage around the thallus

    (d)

    presence of floridean starch

  2. Yeast and Hydra reproduce by ___________

    (a)

    Budding

    (b)

    Fission

    (c)

    Spore formation

    (d)

    Vegetative propagation

  3. Stromatolites are the colonies of cyanobacteria bind with ____________ .

    (a)

    calcium carbonate

    (b)

    calcium hydroxide

    (c)

    magnesium sulphate

    (d)

    calcium silicate

  4. Phycology is the study of __

    (a)

    virus

    (b)

    algae

    (c)

    plants

    (d)

    bacteria

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

    (a)

    Tuberous root

    (b)

    Beaded root

    (c)

    Moniliform root

    (d)

    Nodulose root

  6. A true fruit is the one where

    (a)

    Only ovary of the flower develops into fruit

    (b)

    Ovary and calyx of the flower develops into the fruit

    (c)

    Ovary, calyx, and thalamus of the flower develops into the fruit

    (d)

    All floral whorls of the flower develop into fruit:

  7. Which of the following is a flowering plant with nodules containing filamentous nitrogen fixing micro-organisms?

    (a)

    Crotalaria juncea

    (b)

    Cycas revoluta

    (c)

    Cicer arietinum

    (d)

    Casuarina equisetifolia

  8. Centromere is required for

    (a)

    transcription

    (b)

    crossing over

    (c)

    cytoplasmic cleavage

    (d)

    movement of Chromosome towards pole

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

    (a)

    Ligases

    (b)

    Lyases

    (c)

    Hydrolases

    (d)

    Isomerases

  10. If the diameter of the pulley is 6 inches, length of the pointer is 10 inches and distance travelled by pointer is 5 inches. Calculate the actual growth in length of plant.

    (a)

    3 inches

    (b)

    6 inches

    (c)

    12 inches

    (d)

    30 inches

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