111.
Which of the following is excited molecule during photosynthesis
A
Chlorophyll
B
Oxygen
C
Carbondioxide
D
Water
Answer :
Chlorophyll
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112.
Most plants are green in colour because
A
the atmosphere filters out all the colours of the visible light spectrum except green
B
green light is the most effective wavelength region of the visible spectrum in sunlight for photosynthesis
C
chlorophyll is least effective in absorbing green light
D
green light allows maximum photosynthesis
Answer :
chlorophyll is least effective in absorbing green light
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113.
The principle of limiting factors was proposed by
A
Blackman
B
Hill
C
Arnol
D
Liebig
Answer :
Blackman
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114.
The chemical composition of pigments chlorophylls and carotenoids for the first time was given by
A
Willstatter and Stoll
B
Mayer and Anderson
C
Robert Mayer
D
Senebier
Answer :
Willstatter and Stoll
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115.
NADPH2 is also called
A
Real power
B
Oxidising agent
C
Power house of energy
D
Reducing power
Answer :
Reducing power
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116.
Photosystem II occurs in
A
Stroma
B
Cytochrome
C
Grana
D
Mitochondrial surface
Answer :
Grana
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117.
For chlorophyll formation in plants elements needed are
A
Sodium and copper
B
Calcium and potassium
C
Iron and magnesium
D
Iron and calcium
Answer :
Iron and magnesium
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118.
How many molecules of water would be consumed to support one calvin cycles
A
One
B
Two
C
Four
D
Six
Answer :
Two
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119.
The colour of light not utilized during photosynthesis is
A
Violet
B
Green
C
Red
D
Blue
Answer :
Green
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120.
In which of the following process, the light energy is converted into chemical energy
A
Digestive action
B
Respiration
C
Photosynthesis
D
Fermentation
Answer :
Photosynthesis
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