Plant Physiology English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021

9th Standard

    Reg.No. :
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Science

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

    Part A

    10 x 1 = 10
  1. Among the following which one protects our mother earth?

    (a)

    o2

    (b)

    o3

    (c)

    o4

    (d)

    o5

  2. The discovery of Jan Baptist van Helmont was on________________ of the banyan tree

    (a)

    Height

    (b)

    Mass

    (c)

    width

    (d)

    thickness

  3. Priestley concluded that spring of mint had absorbed________________.

    (a)

    CO2

    (b)

    02

    (c)

    N02

    (d)

    S02

  4. To de-starch the plant, the plant should be kept is darkroom for_________________.

    (a)

    12 hrs

    (b)

    6 hrs

    (c)

    48 hrs

    (d)

    24 hrs

  5. Identify the emerald green sea slug________________.

    (a)

    Vaucheria litorea

    (b)

    Nepenthes

    (c)

    Droseta

    (d)

    Elysia chlorotica

  6. Sunlight can peretrate___________ m into the ocean.

    (a)

    200m- 400m

    (b)

    100m-300m

    (c)

    100m - 200m

    (d)

    200m-600m.

  7. The air exchange takes place continuo sly through_______________.

    (a)

    Grana

    (b)

    Stomata

    (c)

    Mitochondria

    (d)

    Stem

  8. ___________________% of water is used to produce carbohydrates by the plants.

    (a)

    0.01%

    (b)

    0.001%

    (c)

    0.1%

    (d)

    0.6%.

  9. Among the following which one is most biodiverse terrestrial place?

    (a)

    Africa

    (b)

    America

    (c)

    Argentina

    (d)

    Amazon.

  10. The byproduct of photosynthesis is________________.

    (a)

    co2

    (b)

    o2

    (c)

    H2o

    (d)

    Starch.

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