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Plant Kingdom Test - 22

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Plant Kingdom Test - 22
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Agar agar is obtained from
    Solution

    Correct option: B

    Explanation:

    Agar-agar is a natural gelling substance stemming from the cell walls of red algae of the Gelidiaceae family like Gelidium and Gracialaria. It has long been used in several Asian cuisines.

  • Question 2
    1 / -0
    Of the following group which secrete and deposit calcium
    carbonate and appear like corals

    Solution
    Some red algae deposit calcium carbonate on their surface. They are called coralline algae e.g., Corallina. They help to develop coral reefs alongwith corals.
  • Question 3
    1 / -0
    Match the columns
    Column-I                                            Column-II
    A  Hornwort                             1        Lycopodium
    B  Liverwort                             2        Ricciocarpus
    C Stonewort                            3        Anthoceros
    D Club moss                           4        Chara







  • Question 4
    1 / -0
    Botanical name of peat moss is
    Solution
    Canadian Sphagnum, peat moss is a natural, organic soil conditioner, that regulates moisture and air around plant roots for ideal growing conditions.
    So, the correct answer is 'Sphagnum'
  • Question 5
    1 / -0
    A protective cap or hook like covering on the developing  capsule in a moss is known as _________.
    Solution
    Calyptra is a outermost protective covering of moss and liverwort. It is usually lost before the spores are released from the capsule.
    So, the correct answer is (B).
  • Question 6
    1 / -0
    The gametophytic generation in pteridophytes is commonly called ___________.
    Solution
    In ferns, gametophytic generation  is represented by heart-shaped prothallus. 
  • Question 7
    1 / -0
    Laminaria (kelp) and Fucus (rock weed) are the examples of 
    Solution
    The large (giant) parenchymatous forms of brown algae are called kelps or sea weed or trees of seas or forest of sea. (e.g., Maccrocystic 30-60m; Nereocystis 20-30m, Laminaria 2-12m). Both contain fucoxanthin, which is brown in colour. Due to which both are grouped under brown algae.


  • Question 8
    1 / -0
    Which one is partially submerged and fixed in mud
    Solution
    Typha is a rooted emergent. Roots are in soil shoots or leaves are partly outside and partly inside the water.
  • Question 9
    1 / -0
    The model organism that has largely been responsible for making rapid advances in research on photosynthesis is 
    Solution
    Warburg in 1920 found green alga Chlorella to be useful for photosynthesis experiments. The earliest experiments on the pathways of carbon in photosynthetic and heterotrophic metabolism using radioactive carbon, as a tracer were performed by Samuel Ruben, Martin Kamen and their colleagues.
  • Question 10
    1 / -0
    Among the plants listed, point out which one does not fit into ecological group represented by other plants 
    Solution
    Acacia, Aloe, Euphorbia are xerophytes plants while Vallisneria is hydrophyte and Rhizophora belongs to the halophyte plant group.
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