21.
CO2 is accepted by RUBP in C4 plants in
A
Mesophyll cells
B
Bundle sheath cells
C
Stomatal garud cells
D
Epidermal cells
Answer :
Bundle sheath cells
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22.
Bio-Chemical phase in photosynthesis was first discovered by
A
Calvin
B
Balckman
C
Arnon
D
Hill
Answer :
Balckman
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23.
Who proposed Z- scheme of light reaction
A
Arnon
B
Calving and Bensen
C
Emmerson and Arnon
D
Blackman
Answer :
Arnon
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24.
Which scientists are related with light reaction & what is its site
A
Arnon & Hill, Grana
B
Ruben & Kamen, Stroma
C
Willstatter, Stoll, inner membrane of chloroplast
D
Calvin & Benson, outer membrane of chloroplast
Answer :
Arnon & Hill, Grana
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25.
Emerson's enhancement effect and Red drop have been instrumental in the discovery of
A
photophosphorylation and non-cyclic electron transport
B
two photosystems operating simultaneously
C
photophosphorylation and cyclic electron transport
D
oxidative phosphorylation
Answer :
two photosystems operating simultaneously
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26.
Photorespiration is discovered by
A
Decker & Tio
B
Van sahs
C
Rouhani
D
O-leri
Answer :
Decker & Tio
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27.
The main site for dark reaction of photosynthesis is
A
Stroma
B
Grana
C
Intergrana
D
Mitochondria
Answer :
Stroma
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28.
Chloroplast contains maximum quantity of
A
Pyruvic carboxylase
B
Hexokinase
C
RUDP carboxylase
D
None of the above
Answer :
RUDP carboxylase
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29.
Which technique has helped in investigation of Calvin cycle?
A
X-ray crystallography
B
X-ray technique
C
Radioactive isotope technique
D
Intermittent light
Answer :
Radioactive isotope technique
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30.
Water soluble pigments found in plant cell vacuoles are
A
Xanthophylls
B
Chlorophylls
C
Carotenoids
D
Anthocyanins
Answer :
Anthocyanins
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