1.
Which one of the following pigment does not occur in the chloroplast
A
Carotene
B
Xanthophyll
C
Chlorophll 'b'
D
Anthocynanin
Answer :
Anthocynanin
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2.
How many calvin cycles would generate one molecules of glucose/hexose
A
One cycle
B
Three cycles
C
Six cycles
D
Twelve cycles
Answer :
Six cycles
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3.
In the CO2 content of the atmosphere is as high as 300 parts per million
A
All plants would be killed
B
The plants would not grow properly
C
Plants would grow for some time and then die.
D
The plants would thrive well
Answer :
The plants would thrive well
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4.
Name of the scientist who pointed out the importance of different wavelengths of light using a green algae and aerobic bacteria
A
Priestely
B
Ingen - Housz
C
K.V. Thimann
D
Engleman
Answer :
Engleman
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5.
Wavelength of light responsible for Emerson's enhancement effect
A
Only 680 nm ↑
B
Only 680 nm ↓
C
Infra red wavelength
D
Both 680 nm ↑ and 680 nm ↓
Answer :
Both 680 nm ↑ and 680 nm ↓
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6.
NADPH is generated through
A
photosystem I
B
photosystem II
C
anerobic respiration
D
glycolysis
Answer :
photosystem I
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7.
The enzyme that fixed atmospheric CO2 in C4 plants is
A
PEP carboxylase
B
Hexokinase
C
RUBP oxygenase
D
Hydrogenase
Answer :
PEP carboxylase
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8.
Splitting of water in photosynthesis is called
A
Dark reaction
B
Photolysis
C
Electron transfer
D
Phototropism
Answer :
Photolysis
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9.
The main difference between chlorophyll 'a' and 'b' is
A
Chlorophyll 'a' is a linear chain compound and 'b' is branched chain
B
Chlorophyll 'a' has no Mg+ ion in centre of molecule
C
In chlorophyll 'a' there is -CH3 group whereas in 'b' it is -CHO group
D
All of the above
Answer :
In chlorophyll 'a' there is -CH3 group whereas in 'b' it is -CHO group
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10.
What is C2 - Cycle
A
Glycolate cycle
B
Calvin cycle
C
Kre's cycle
D
TCA-cycle
Answer :
Glycolate cycle
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