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Plant Kingdom Test - 62

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Plant Kingdom Test - 62
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  • Question 1
    1 / -0
    Generally red algae do not form _________.
    Solution
    Many small algae reproduce asexually by ordinary cell division or by fragmentation, whereas larger algae reproduce by spores. Some red algae produce monospores (walled, non-flagellate, spherical cells) that are carried by water currents and upon germination produce a new organism.
    So, option A is the correct option.
  • Question 2
    1 / -0
    Gametophytic and sporophytic phases are independent in
    Solution
    Pteridophytes shows alternation of generation. They exhibit dominant sporophytic generation with an inconspicuous gametophytic generation. The sporophyte is differentiated into root, stem, and leaves. Whereas, the small and inconspicuous gametophyte is independent and autotrophic.
    Thus, the correct answer is option A.
  • Question 3
    1 / -0
    Protein rich alga is
    Solution
    Chlorella is an autotroph which prepares its own food with the help of photosynthesis. It is a single-cell green algae which has chlorophyll pigment chlorophyll-a and -b in its chloroplast. It is more or less equivalent to soybean and spinach having high proteins, lipids, and varieties of vitamins. It is used as health supplements. It is the rich source of iron, magnesium, and zinc.
    So, the correct answer is option A.
  • Question 4
    1 / -0
    Solar energy transducer is
    Solution
    Chlorella is an autotroph which prepares its own food with the help of photosynthesis. It is a single-cell green algae which has chlorophyll pigment chlorophyll-a and -b in its chloroplast. It is known as solar energy transducer as it traps the sunlight and converts the solar energy received by the sun to chemical energy. 
    So, the correct answer is option D.
  • Question 5
    1 / -0
    Algae have cells made up of ________.
  • Question 6
    1 / -0
    In India, liverworts are abundantly found in 
    Solution
    The liverworts are widely distributed over the earth's surface but are far more numerous in trophic than in other parts of the world's. In India, they are abundantly found in the Western Himalayas where rainfall is maximum.
  • Question 7
    1 / -0
    It is a copper moss
    Solution
    Copper moss is the moss which grows on copper-rich rocks. Merceya is a eukaryote and considered as a bryophyte. It is considered as a small genus of bryophyte. It can survive in the high dose of sulfur which is lethal for other mosses. Bryum argenteum is considered as the largest genus of moss. Tortella is also a genus of moss and is considered as a bryophyte.
    So, the correct answer is option C. 
  • Question 8
    1 / -0
    In numerical taxonomy, the taxonomic entity of the lowest rank used is ______________.
    Solution
    A. Operational taxonomic unit
    Solution : Taxon is the basic unit of taxonomy. It is defined as a group of one or more populations of a living being which is seen by taxonomists to form a unit. A classic example is African elephants from the genus Loxodonta which is widely accepted as a taxon. Operational taxonomy unit is used to categorize bacteria based on sequence similarity. Each of these clusters is intended to represent a taxonomic unit of a bacteria species or genus depending on the sequence.
    So, the correct answer is option A. 
  • Question 9
    1 / -0
    Which one of the following is not a common feature of gametophyte selfincompatibility systems?
  • Question 10
    1 / -0
    Consider the following statements.
    a. In Pteridophytes, the phloem lacks companion cells
    b. The xylem lacks vessels in majority of Pterifophytes
    c. Heterosporous Pteridophytes have inconspicuous gametophytes
    d. Water is essential for fertilization in Pteridophytes.
    Which of these statements are correct?
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