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Photosynthesis in Higher Plants Test - 4

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Photosynthesis in Higher Plants Test - 4
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  • Question 1
    1 / -0

    Photosynthesis is maximum in

    Solution

    There is maximum absorption by chlorophyll a, in the red region and so there is higher rate of photosynthesis.

  • Question 2
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    The splitting of water molecule take place inside

    Solution

    Splitting of the water molecule takes place on the inner side of the membrane, the protons or hydrogen ions that are produced by the splitting of water accumulate within the lumen of the thylakoids.

  • Question 3
    1 / -0

    The portion of ATPase enzyme that protrudes on outer surface of the thylakoid membrane on the side faces of the stroma

  • Question 4
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    Which of the following enzymes of TCA cycle is located only in the inner mitochondrial membrane?
  • Question 5
    1 / -0

    Solarisation is

    Solution

    Solarisation is the inhibition of photosynthesis at very high light intensities due to photoxidation of certain compounds and destruction of chlorophyll moleucules.

  • Question 6
    1 / -0

    Name the photosynthetic pigment which can be converted to Vitamin A?

    Solution

    The photosynthetic pigment Beta-carotenes can be converted to Vitamin A. carrot contain large quantity of carotenes that can be converted into vitamin A

  • Question 7
    1 / -0
    Maximum photosynthesis happens in
  • Question 8
    1 / -0

     In Bacterial photosynthesis, hydrogen donar  is

    Solution

    In green plants H2OH2O is the hydrogen donor and is oxidised to O2O2 . Some organisms do not release O2O2 during photosynthesis. When H2S, instead is the hydrogen donor for purple and green sulphur bacteria, the ‘oxidation’ product is sulphur or sulphate depending on the organism.

  • Question 9
    1 / -0
    Which of the following options does not have dicarboxylic acid cycle?
  • Question 10
    1 / -0
    Directions: Two statements referred to as Assertion (A) and Reasoning (R) are provided. Choose the best option.

    Assertion (A): Photosynthesis does not occur in etiolated leaves without chlorophyll.
    Reasoning (R): In variegated leaves, photosynthesis occurs only at the places where chlorophyll is present.
  • Question 11
    1 / -0

    The essential role of air in the growth of green plants is given by

    Solution

    Joseph Priestley (1733-1804) in 1770 performed a series of experiments that revealed the essential role of air in the growth of green plants.

  • Question 12
    1 / -0
    Phytochrome occurs in two forms. In which form(s) does it promote the germination of seeds of some species?
  • Question 13
    1 / -0

    The chief pigment associated in process of photosynthesis is

    Solution

    Chlorophyll a, shows higher rate of photosynthesis.so, chlorophyll a is the chief pigment associated with photosynthesis.

  • Question 14
    1 / -0
    At carbon-3, chlorophyll has
  • Question 15
    1 / -0
    The water-soluble pigment present in vacuoles is
  • Question 16
    1 / -0
    Carotenes protect plants from
  • Question 17
    1 / -0
    Which of the following sequences correctly represents the flow of electrons during photosynthesis?
  • Question 18
    1 / -0
    What will be the effect on a phytochrome leaf if it is subjected to continuous red light?
  • Question 19
    1 / -0
    The first stable product of C3 photosynthesis is
  • Question 20
    1 / -0

    Photosynthesis take place in

    Solution

    Photosynthesis takes place only in the green parts of the plants, mainly the leaves.

  • Question 21
    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 22
    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 23
    1 / -0
    Which of the following statements is not correct?
  • Question 24
    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 25
    1 / -0
    The alga used by Calvin and his co-workers in their experiments on photosynthesis was
  • Question 26
    1 / -0
    C4 plants are photosynthetically more efficient than C3 plants because
  • Question 27
    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 CO2 CO2 fixation product was a 3-carbon organic acid.

  • Question 28
    1 / -0
    The oxygen produced during photosynthesis comes from proteolysis of water. It was proved by
  • Question 29
    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 30
    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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