101.
Which pigment system is inactivated in red drop?
A
PS -I and PS -II
B
PS-I
C
PS -II
D
None of these
Answer :
PS -II
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102.
CAM helps the plants in :
A
conserving water
B
secondary growth
C
disease resistance
D
reproduction
Answer :
conserving water
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103.
Presence of carotenes in chloroplast helps in
A
ATP synthesis
B
Transferring radiant energy into chemical energy
C
Protecting chlorophyll molecules from photooxidation
D
Absorption of longer wavelength of light
Answer :
Protecting chlorophyll molecules from photooxidation
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104.
In addition to the 12 molecules of NADP.H2 the energy required for the synthesis of one mole of hexose by C3 and C34 pathway is
A
18 molecules of ATP
B
30 molecules of ATP
C
18 & 30 molecules of ATP respectively
D
30 & 18 molecules of ATP respectively
Answer :
18 & 30 molecules of ATP respectively
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105.
Photorespiration is favoured by
A
high O2 and low $$C{O_2}$$
B
low light and high $${O_2}$$
C
low temperature and high $${O_2}$$
D
low $${O_2}$$ and high $$C{O_2}$$
Answer :
high O2 and low $$C{O_2}$$
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106.
Ribulose bisphosphate carboxylase oxygenase (Rubico) is located in
A
Golbibodies
B
Peroxisome
C
Chloroplast
D
Mitochondria
Answer :
Chloroplast
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107.
Photorespiration in C3 plants starts from
A
Phosphoglycerate
B
Glycerate
C
Glycine
D
Phosphoglycolate
Answer :
Phosphoglycolate
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108.
Of the total among of water absorbed by the plant, its actual percentage used during photosynthesis is
A
50%
B
90%
C
1%
D
25%
Answer :
1%
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109.
Products of photosynthesis are
A
Carbon dioxide and food material
B
Carbohydrates and oxygen
C
Carbon dioxide and oxygen
D
Formaldehyde and nitrogen
Answer :
Carbohydrates and oxygen
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110.
Which of the following chlorophyll is lack of phytol tail
A
Chl 'a'
B
Chl 'b'
C
Chl. 'c'
D
Chl. 'e'
Answer :
Chl. 'c'
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