How statements are correct?
i. chlorophyll-a , xanthophylls and carotenoids are called as accessory pigments.
ii. accessory pigments protect chlorophyll-a from photo-oxidation.
iii. chlorophylla are the major pigments responsible for trapping of light
iv. chl-a and chl-b forms the reaction centre
v. chl-a transfers the energy to accessory pigments.
a. 2
b. 3
c. 4
d. 5
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPhotochemical phase does not include-
a. water splitting
b. oxygen release
c. CO2 assimilation
d. light absorption
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statement is incorrect?
a. Reaction centre is formed by a group of chl- a molecules.
b. Reaction centre is different in both the photosystems.
c. In PS I the reaction centre chlorophyll a has an absorption peak at 700 nm.
d. In PS II the reaction centre chlorophyll a has absorption maxima at 680 nm.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn photosystem-I, P700 refers to-
a. chl-b
b. chl-a
c. number of pigment molecules
d. absorption peak of chl-a at 700nm.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLight harvesting complexes are made up of-
1. proteins
2. pigments
3. protein and pigments
4. proteins and lipids.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn chloroplast the movement of electrons from PS-II to electron transport system is-
1. uphill in terms of redox potential scale.
2. downhill in terms of redox potential scale.
3. from one cytochrome to another
4. None of the above.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyElectrons 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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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFinal acceptor in the Z-scheme of light reaction-
1. oxygen
2. NADPH
3. NADP+
4. ferredoxin
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the Z-scheme of light reaction, at how many positions an electron is excited by the light?
1. 1
2. 2
3. 3
4. 4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySpliting 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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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology