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Organisms and Populations Test - 22

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Organisms and Populations Test - 22
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  • Question 1
    1 / -0
    Botanical name of Venus flytrap is
    Solution
    Dionaea is Venus flytrap. Nepenthes is pitcher plant. Utricularia is bladderwort. Aldrovanda is waterwheel plant. Thus, the correct answer is option B.
  • Question 2
    1 / -0
    Majority of the orchids are
    Solution
    Epiphytes are plants that grow anchored to other plants. They grow on other plants for physical support. They are parasitic and absorb their water and nutrients from the rain, air, and other debris that collects nearby. They makeup approximately 10% of all plant species and are common among bromeliads, ferns, orchids, and many more plant groups.
    So, the correct answer is option B.
  • Question 3
    1 / -0
    Santalum album is
    Solution
    Santalum album, commonly known as Indian sandalwood tree, is a genus of woody flowering plants. The roots of Santalum trap the roots of other plants to derive water and other inorganic nutrients, though it can photosynthesise itself.
    Since, it is partially dependent on other plants for deriving water and inorganic nutrients but can photosynthesise its own food, it is a partial root parasite.
    So, the correct answer is 'Partial root parasite'.
  • Question 4
    1 / -0
    Balanophora / Orobanche is a
    Solution
    Orobanche (broom-rape) is obligate total root parasite. It is parasitic on roots of brinjal, tobacco, potato, tomato etc.
  • Question 5
    1 / -0
    Insectivorous plant with rosette of spiny margined bilobed hinged and winged leaves for catching the prey is
    Solution
    In Dionea or Venus flytrap the lamina of leaf is modified into pin like projection to trap insects.
  • Question 6
    1 / -0
    Dionaea muscipula is
    Solution
    Dionea is commonly called as Venus fly trap. In this plant, the lamina of leaf is modified into hairs like projection to feed on insects.
  • Question 7
    1 / -0
    Botanical generic name of bladderwort is
    Solution
    Drosera is the sundew plant. Nepenthes is the pitcher plant. Utricularia is the bladderwort plant. Dionea is the venus flytrap. Thus, the correct answer is option C.
  • Question 8
    1 / -0
    An obligate root parasite is
    Solution
    Loranthus and Viscum are both partial stem parasites. Striga is obligate root parasite and Rafflesia is total or obligate root parasite.
  • Question 9
    1 / -0
    A rootless aquatic plant in which a portion of leaf is modified to form a bladder for catching small aquatic animals is
    Solution
    Utricularia is an aquatic plant. Portions of leaves are modified into sac-like bladders. Small aquatic insects flows into the bladder and are digested. Utricularia, commonly and collectively called the bladderworts.
  • Question 10
    1 / -0
    In Nepenthes, the pitcher is formed due to modification of
    Solution
    Nepenthes is commonly called as pitcher plant. It is an insectivorous plant. In this plant the leaf lamina is modified into a pitcher like structure to trap insects.
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