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Plant Kingdom Test - 35

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Plant Kingdom Test - 35
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Weekly Quiz Competition
  • Question 1
    1 / -0
    An example of plant that belongs to bryophyte
  • Question 2
    1 / -0
    Algae are useful because they____________.
    Solution
    Algae belong to the Plant kingdom and like plants only they proceed photosynthesis. They also have the ability to trap solar energy as they contain chloroplast. They also produce food and oxygen as the end product of photosynthesis. They can grow in fresh and saltwater. They can also grow on rocks and moist soil. Thus, they purify the atmosphere in any environmental condition by producing a large amount of oxygen.
  • Question 3
    1 / -0
    .......... are known as amphibians of plant kingdom.
  • Question 4
    1 / -0
    Algae is a source of food for humans because it contains useful substances such as:
  • Question 5
    1 / -0
    Multi ciliated antherozoids occur in _________.
  • Question 6
    1 / -0
    Which among the following correctly describe the basic characteristics of bryophytes?
  • Question 7
    1 / -0
    A, B and C are three plants. A bears seeds but no fruits, B have no flowers or seeds, C is called amphibians of plant group. 
    Identify the groups to which these plants belong.
    Solution
    • Gymnosperms bear naked seeds not enclosed in a fruit.
    • Pteridophytes do not have flowers or seeds and have tiny spores which get scattered to form new plants.
    • Bryophytes are the amphibians of the plant group, which although grows on land but need water for reproduction.
    Thus, option A is correct.
  • Question 8
    1 / -0
    Grouping of algae is based on
    Solution

    The classification of algae on the basis of pigmentation is given by Fritsch. The specialised plastids called chromophores are present in algae where pigments are found. Almost the major groups of algae have at least one characteristic pigment in it.

    The correct answer is D.

  • Question 9
    1 / -0
    The term prothallus is used for
    Solution
    • The life cycle of Pteridophytes is dominated by the sporophyte (sexual) stage of the alternation of generations. 
    • Sporophyte plant produces haploid spores after meiosis that germinate to produce a thallus-like gametophyte plant body i.e prothallus.
    • Gametophyte plant body is responsible for formation of male and female gametes through mitosis only.
    • These haploid gametes fuse to form diploid zygote that divides and differentiate to produce sporophyte plant body.

        So, the correct answer is option C.
      • Question 10
        1 / -0
        Dominant phase in life cycle of most algae and fungi is ____________.
        Solution
        The haploid life cycle is the most common in algae and 
        most fungi. A general life history includes both a In 
        stage and a In stage separated maiosis and syngamy

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