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Photosynthesis ...

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  • Question 1
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    Refer to the given reaction.
    $$2H_{2}O \rightarrow 4H^{+} + O_{2} + 4{e^-}$$
    Where does this reaction take place in the chloroplasts of plants?

  • Question 2
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    Select the correct option:

    Study the following statements regarding chemiosmotic hypothesis in mitochondria and select the correct ones.
    (i) $${F}_{1}$$ headpiece contains the site for the syntesis of ATP from ADP+Pi.
    (ii) $${F}_{0}$$ part forms the channel through which protons cross the inner membrane.
    (iii) For each ATP produced, $${2H}^{+}$$ pass through $${F}_{0}$$ from the intermembrane space to the matrix down the electrochemical proton gradient.

  • Question 3
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    The biochemical objective of PS I is to 

  • Question 4
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    Identify the correct option:

    Given graph represents the absorption spectra of three photosynthetic pigments, chl $$a$$ chl $$b$$ and $$\beta$$-carotene. 
    Select the correct statement regarding this.

  • Question 5
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    Chlorophyll a appears ............. in colour and chlorophyll b appears ................ in color in the chromatogram. 

  • Question 6
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    If green plant cells are incubated with $$ O^{18} $$ - labeled water, which of the following will become radioactive when the cells are exposed to light?                                              

  • Question 7
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     At least a half of the total $$CO_{2}$$ fixation on- Earth is carried out through photosynthesis by

  • Question 8
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    The synthesis of complex organic substances from simple inorganic raw materials in the presence of sunlight and chlorophyll is called ..........., which is a ............ process. 

  • Question 9
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    Which of the following is an incorrect combination of organism with its chromosome number in mieocyte and in gamete?

  • Question 10
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    Photosynthetic pigments such as chl $$a$$, chl $$b$$, xanthophyll and carotene can be separated by which of the following techniques?

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