281.
The specific characteristic of $${C_4}$$-plants is
A
bulliform cells
B
isobilateral leaf
C
kranz anatomy
D
parallel veins
Answer :
kranz anatomy
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282.
The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is
A
iron-sulphur protein
B
ferredoxin
C
quinone
D
cytochrome
Answer :
quinone
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283.
Photosynthetic pigments found in the chloroplasts occur in
A
thylakoid membranes
B
plastoglobules
C
matrix
D
chloroplast envelope
Answer :
thylakoid membranes
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284.
In Kranz anatomy, the bundle sheath cells have
A
thin walls, many intercellular spaces and no chloroplasts
B
thick walls, no intercellular spaces and large number of chloroplasts
C
thin walls, no intercellular spaces and several chloroplasts
D
thick walls, many intercellular spaces and few chloroplasts
Answer :
thick walls, no intercellular spaces and large number of chloroplasts
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285.
C-4 plants are adapted to
A
Hot and dry climate
B
Temperate climate
C
Cold and dry climate
D
Hot and Humid climate
Answer :
Hot and dry climate
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286.
What is the value of temperature coefficient (Q10) for dark reaction
A
1
B
2 or 3
C
A and B both
D
None of the above
Answer :
2 or 3
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287.
What is the by product of bacterial photosynthesis
A
O2
B
H2O
C
S
D
H2S
Answer :
S
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288.
Chlorophyll in chloroplasts is located in:
A
grana
B
pyrenoid
C
stroma
D
both grana and stroma
Answer :
grana
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289.
How many turns of Calvin cycle yield one molecule of glucose ?
A
Eight
B
Two
C
Six
D
Four
Answer :
Six
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290.
In Angiosperms, synthesis of chlorophyll occurs in presence of
A
Phytochrome
B
Light
C
Cytochrome
D
None of the above
Answer :
Light
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