1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because
A
a proton gradient forms across the inner membrane
B
there is a change in the permeability of the inner mitochondrial membrane toward adenosine diphosphate (ADP)
C
high energy bonds are formed in mitochondrial proteins
D
ADP is pumped out of the matrix into the intermembrane space.
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Importance of day length in flowering of plants was first shown in
A
cotton
B
Petunia
C
Lemna
D
tobacco.
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Senescence as an active developmental cellular process in growth and functioning of a flowering plant, is indicated in
A
annul plants
B
floral parts
C
vessels and tracheid differentiation leaf abscission.
D
leaf abscission.
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
In humans, blood passes from the post caval to the diastolic right atrium of heart due to
A
stimulation of the sino auricular node
B
pressure difference between the post caval and atrium
C
pushing open of the venous valves
D
suction pull.
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