1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
As compared to a C3-plant, how many additional molecules of ATP are needed for net production of one molecule of hexose sugar by C4-plants?
A
Two
B
Six
C
Twelve
D
Zero
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Plants adapted to low light intensity have
A
larger photosynthetic unit size than the sum plants
B
higher rate of CO2 fixation than the sun plants
C
more extended root system
D
leaves modified to spines.
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In C3 plants, the first stable product of photosynthesis during the dark reaction is
A
malic acid
B
oxaloacetic acid
C
3-phosphoglyceric acid
D
phosphoglyceraldehyde.
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
In sugarcane plant 14CO2 is fixed to malic acid, in which the enzyme that fixes CO2 is
A
ribulose biphosphate carboxylase
B
phosphoenal pyruvic acid carboxylase
C
ribulose phosphate kinase
D
fructose phosphate.
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