121.
In photosynthesis, hydrogen is transferred from the light reactions to dark reactions by A
DPN
B
DNA
C
ATP
D
NADP
Answer :
NADP
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122.
How many type of photosynthetic cells occur in C4 plant in A
One type
B
Two type
C
Four type
D
Eight type
Answer :
Two type
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123.
Which element are present in OEC (Oxygen evolving complex A
Mn++
B
Cl-
C
Ca++
D
All of the above
Answer :
All of the above
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124.
Photosynthetic units are referred as A
Quantasome
B
Oxysome
C
Phycobilisome
D
F1 - particles
Answer :
Quantasome
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125.
In case of C-4 pathway, in the first step is A
CO2 combines with RUDP
B
CO2 combines with PGA
C
CO2 combines with PEP
D
CO2 combines with RMP
Answer :
CO2 combines with PEP
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126.
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant? A
$${C_3}$$
B
$${C_4}$$
C
CAM
D
Nitrogen fixer
Answer :
$${C_4}$$
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127.
During day light hours, the rate of photosynthesis is higher than that of respiration and the ratio of oxygen produced to that of consumed is A
10 : 1
B
5 : 1
C
1 : 1
D
50 : 1
Answer :
10 : 1
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128.
In pigment system-II the trapping centre of light energy is A
P-700
B
P-680
C
Carotene
D
Xanthophyll
Answer :
P-680
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129.
Pigment system-II occurs in A
Grana
B
Stroma
C
Matrix
D
Oxysomes
Answer :
Grana
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130.
Which one of the following is wrong in relation to photorespiration? A
It is a characteristic of $${C_3}$$ plants
B
It occurs in chloroplasts
C
It occurs in daytime only
D
It is a characteristic of $${C_4}$$ plants
Answer :
It is a characteristic of $${C_4}$$ plants
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