1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which element is located at the centre of the porphyrin ring in chlorophyll?
A
Calcium
B
Magnesium
C
potassium
D
Manganese
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Stomata of CAM plants
A
are always open
B
open during the day and close at night
C
open during the might and close during the day
D
never open.
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following concerns photophosphorylation?
A
ADP + AMP $$\buildrel {Light\,energy} \over \longrightarrow $$ ATP
B
ADP + Inorganic PQ4 $$\buildrel {Light\,energy} \over \longrightarrow $$ ATP
C
ADP + Inorganic PQ4 $$\buildrel \, \over \longrightarrow $$ ATP
D
AMP + Inorganic PQ4 $$\buildrel {Light\,energy} \over \longrightarrow $$ ATP
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Which pigment absorbs the red and far-red light?
A
Cytochrome
B
Phytochrome
C
Carotenoids
D
Chlorophyll.
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