Q. No.Production of NADPH in a chloroplast takes place during
(1) cyclic photophosphorylation
(2) non-cyclic photophosphorylation
(3) series photophosphorylation
(4) substrate level photophosphorylation.
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The photoautotrophic organisms that do not split water to obtain reducing power are
(1) purple bacteria
(2) cyanobacteria
(3) green plants
(4) none of these
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Dark reaction occurs
(1) only in light
(2) only in the absence of light
(3) independent of light
(4) both (1) and (3).
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Photorespiration, usually occurs in
(1) one cell organelle
(2) two cell organelles
(3) three cell organelles
(4) four cell organelles.
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Which of the following statements about phytochrome is true?
1. Pr absorbs yellow light and becomes Pfr
2. Pr absorbs red light and becomes Pfr
3. Pfr absorbs red light and becomes Pr
4. Pfr absorbs yellow light and becomes Pr .
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Blackman's law is related to
(1) respiration
(2) transpiration
(3) root pressure
(4) photosynthesis.
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Who discovered photophosphorylation?
(1) Arnon et. al.
(2) Von Mayer
(3) Clavin et.al.
(4) Hill
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Photosynthetic bacteria do not contain
(1) quantasome
(2) PS-I and PS-II
(3) PS-II
(4) PS-I.
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The photorespiratory carbon-oxidation cycle involves the interaction of
1. chloroplast
2. mitochordria
3. peroxisomes
4. all of these.
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Photorespiration in C3 plants starts from:
(1) phosphoglycerate
(2) phosphoglycolate
(3) Glycerate
(4) glycine.
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