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11th Standard Biology English Medium Free Online Test Book Back One Mark Questions - 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. Identify the Archaebacterium

    (a)

    Acetobacter

    (b)

    Erwinia

    (c)

    Treponema

    (d)

    Methanobacterium

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

    (a)

    Tuberous root

    (b)

    Beaded root

    (c)

    Moniliform root

    (d)

    Nodulose root

  3. Many cells function properly and divide mitotically even though they do not have

    (a)

    plasma membrane

    (b)

    cytoskeleton

    (c)

    mitochondria

    (d)

    plastids

  4. The protein present in the thin filament is

    (a)

    myosin

    (b)

    actin

    (c)

    pectin

    (d)

    leucin

  5. Which one of the following statement is correct

    (a)

    Calcitonin and thymosin are thyroid hormones

    (b)

    Pepsin and prolactin are secreted in stomach

    (c)

    Secretin and rhodopsin are polypeptide hormones

    (d)

    Cortisol and aldosterone are steroid hormones

  6. Aquaponics is a technique which is

    (a)

    A combination of aquaculture and fish culture

    (b)

    A combination of aquaculture and hydroponics

    (c)

    A combination of vermiculture and hydroponics

    (d)

    A combination of aquaculture and prawn culture

  7. If a plant is provided with all mineral nutrients but, Mn concentration is increased, what will be the deficiency?

    (a)

    Mn prevent the uptake of Fe, Mg but not Ca

    (b)

    Mn increase the uptake of Fe, Mg and Ca

    (c)

    Only increase the uptake of Ca

    (d)

    Prevent the uptake Fe, Mg, and Ca

  8. The correct sequence of flow of electrons in the light reaction is

    (a)

    PS II, plastoquinone, cytochrome, PS I, ferredoxin.

    (b)

    PS I, plastoquinone, cytochrome, PS II ferredoxin.

    (c)

    PS II, ferredoxin, plastoquinone, cytochrome, PS I.

    (d)

    PS I, plastoquinone, cytochrome, PS II, ferredoxin.

  9. During oxidation of two molecules of cytosolic NADH + H+, number of ATP molecules produced in plants are

    (a)

    3

    (b)

    4

    (c)

    6

    (d)

    8

  10. Seed dormancy allows the plants to

    (a)

    overcome unfavourable climatic conditions

    (b)

    develop healthy seeds

    (c)

    reduce viability

    (d)

    prevent deterioration of seeds

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