231.
In the leaves of $${C_4}$$ plants, malic acid formation during $$C{O_2}$$ fixation occurs in the cells of
A
bundle sheath
B
phloem
C
epidermis
D
mesophyll
Answer :
mesophyll
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232.
Chlorophyll a occurs in
A
all photosynthetic autotrophs
B
in all higher plants
C
all oxygen liberating autotrophs
D
all plants except fungi
Answer :
all oxygen liberating autotrophs
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233.
The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are :
A
Grana
B
Stroma lamellae
C
Stroma
D
Cristae
Answer :
Grana
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234.
The photosynthetic pigment "chlorophylls" are soluble in
A
Water
B
Inorganic solvent
C
Organic solvent
D
Water & organic solvent
Answer :
Organic solvent
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235.
In photosynthesis CO2 combines with
A
RUDP/RUBP
B
ATP
C
ADP
D
PGA
Answer :
RUDP/RUBP
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236.
Ribulosediphosphate carboxylase enzyme, catalyse the carboxylation reaction between
A
CO2 and ribulose-1, 5-diphosphate
B
Oxalloacetic acid and acetyl CoA
C
PGA and dihydroxyacetone phosphate
D
Ribulosediphosphate and phosphate glycerdehyde
Answer :
CO2 and ribulose-1, 5-diphosphate
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237.
Which of the following order is correct about the rate of photosynthesis
A
Blue > yellow > orange > red
B
Blur > red > yellow > orange
C
Red > blue > yellow > orange
D
Yellow > orange > blue > red
Answer :
Red > blue > yellow > orange
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238.
The "red - dro" phenomenon is due to the disruption of the photo chemical activity of
A
Ps - I
B
PS - I & PS - II both
C
PS - II
D
Carotenoids
Answer :
PS - II
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239.
"Kranz" type of Anatomy is found in
A
C4 plant
B
C? plant
C
Succelents
D
None of the above
Answer :
C4 plant
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240.
Carbon refixation in C4 plants occurs in chloroplasts of
A
Palisade tissue
B
Spongy Mesophyll
C
Bundle sheath cells
D
Gaurd cells
Answer :
Bundle sheath cells
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