11.
The first acceptor of electrons from and excited chlorophyll molecule of photosystem II is
A
Quione
B
Cytochrome
C
Iron-suphur protein
D
Ferredoxin
Answer :
Quione
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12.
Oxygenic photosynthesis occurs in:
A
Oscillatoria
B
Rhodospirillum
C
Chlorobium
D
Chromatium
Answer :
Oscillatoria
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13.
A photosynthesising plant is releasing 18$$O$$ more than the normal. The plant must have been supplied with
A
$${O_3}$$
B
$${H_2}O$$ with 18$$O$$
C
$$C{O_2}$$ with 18$$O$$
D
$${C_6}{H_{12}}{O_6}$$ with 18$$O$$
Answer :
$${H_2}O$$ with 18$$O$$
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14.
Photophosphorylation is the process in which
A
CO2 and O2 unit
B
Phosphoglyceric acid is produced
C
Aspartic acid is formed
D
Light energy is converted in to chemical energy by production of ATP
Answer :
Light energy is converted in to chemical energy by production of ATP
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15.
Bacterial photosynthesis involves
A
PS-I only
B
PS - II only
C
Both PS-I and PS-II
D
None of the above
Answer :
PS-I only
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16.
Pigment acting as a reaction centre during photosynthesis is
A
Carotene
B
Phytochrome
C
P700
D
Cytochrome
Answer :
P700
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17.
Chlorophyll 'a' is found in
A
All O2 releasing photosynthetic forms
B
Only higher plants.
C
Higher plants that phtosynthesize
D
All photosynthetic eukaryotes
Answer :
All O2 releasing photosynthetic forms
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18.
Which one is Cu++ containing protein complex
A
Ferridoxin
B
Plastocynain
C
Platoquinone
D
Cytochrome
Answer :
Plastocynain
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19.
At a temperature above $${35^ \circ }C$$
A
rate of photosynthesis will decline earlier than that of respiration
B
rate of respiration will decline earlier than that of photosynthesis
C
there is no fixed pattern
D
both decline simultaneously
Answer :
rate of photosynthesis will decline earlier than that of respiration
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20.
Which of the following is not a product of light reaction of photosynthesis?
A
ATP
B
NADH
C
Oxygen
D
NADPH
Answer :
NADH
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