Electrons in the reaction center of PS-I are excited by-
a. blue light
b. red light
c. green light
d. blue and red light.

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Final acceptor in the Z-scheme of light reaction-
a. oxygen
b. NADPH
c. NADP+
d. ferredoxin

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In the Z-scheme of light reaction, at how many positions an electron is excited by the light?
a. 1
b. 2
c. 3
d. 4

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Spliting of water is associated with-
a. PS II
b. PS I
c. PS I AND PS II
d. outer membrane of thylakoid.

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Which of the following statement is incorrect?
a. Electrons to PS-I are provided by PS-II
b. Electrons to PS-II are provided by splitting of water
c. Electrons to PS-I are provided by splitting of water
d. PS-II is physically located on the inner side of the membrane of thylakoid.

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Where are the protons and oxygen produced by the splitting of water likely to be released?
a. in the lumen of thylakoid
b. on the outer side of the membrane
c. Both a and b
d. used up in the light reaction

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In plant cells ATP is synthesised in-
a. mitochondria
b. chloroplast
c. mitochondria and chloroplast
d. in mitochondria during day and in chloroplasts during night.

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Non- cyclic photophosphorylation involves –
a. PS-I
b. PS-II
c. PS-I and PS-II
d. PS-I and LHC.

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Where does cyclic photo-phosphorylation takes place?
a. membranous system of chloroplast
b. stroma lamellae
c. grana
d. stroma

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Which of the following is present in membrane of stroma lamellae?
a. NADP reductase
b. PS-I
c. PS-II
d. water splitting complex.

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