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Photosynthesis in Higher Plants Test - 3

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Photosynthesis in Higher Plants Test - 3
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Weekly Quiz Competition
  • Question 1
    1 / -0

    The substances that have ability to absorb light at different specific wavelength are

    Solution

    Pigments are substances that have an ability to absorb light, at specific wavelengths. The chlorophylla pigment absorb lights of different wavelengths.

     

  • Question 2
    1 / -0

    Accessory pigments protect plants from

    Solution

    Other thylakoid pigments like chlorophyll b, xanthophylls and carotenoids, which are called accessory pigments, also absorb light and transfer the energy to chlorophyll a. Indeed, they not only enable a wider range of wavelength of incoming light to be utilized for photosynthesis but also protect chlorophyll a from photo-oxidation.

     

  • Question 3
    1 / -0

    Which of the following statements is not correct?

  • Question 4
    1 / -0

    PGA as the first CO2 fixation product was discovered in photosynthesis of

    Solution

    The pathway of photosynthesis was discovered by Melvin Calvin after experiment on single celled algae. The first stable product of C3 cycle is a three carbon compound called PGA (phosphoglyceric acid).

     

  • Question 5
    1 / -0

    The alga used by Calvin and his co-workers in their experiments on photosynthesis was

  • Question 6
    1 / -0

    C4 plants are photosynthetically more efficient than C3 plants because

  • Question 7
    1 / -0

    Melvin Calvin use of radioactive 14C in

    Solution

    The use of radioactive C-14 by him in algal photosynthesis studies led to the discovery that the first CO2CO2 fixation product was a 3-carbon organic acid.

     

  • Question 8
    1 / -0

    The oxygen produced during photosynthesis comes from proteolysis of water. It was proved by

  • Question 9
    1 / -0

    The site in chloroplast which is responsible for trapping for light energy is

    Solution

    The grana is responsible for trapping the light energy and converting it into ATP and NADPH during light reaction of photosynthesis.

     

  • Question 10
    1 / -0

    Which form of carbon is absorbed by the hydrophytes through their general body surface?

    Solution

    Hydrophytes are those plants that grow in water. Hydrophytes can absorb Bicarbonates through their general body surface.

     

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