1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which of the following statements regarding mitochondrial membrane is not correct ?
A
The inner membrane is highly convoluted forming a series of infoldings
B
The outer membrane resembles a sieve
C
The outer membrane is permeable to all kinds of molecules
D
The enzymes of the electron transfer chain are embedded in the outer membrane
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
A student wishes to study the cell structure under a light microscope having 10X eyepiece and 45X objective. He should illuminate the object by which one of the following colours of light so as get the best possible resolution ?
A
Yellow
B
Red
C
Blue
D
Green
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Chlorophyll in chloroplasts is located in
A
Stroma
B
Grana
C
Pyrenoid
D
Both (A) and (C)
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
According to widely accepted "fluid mosaic model" cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements are incorrect ?
A
Proteins in cell membranes can travel within the lipid bilayer
B
Proteins can also undergo flip-flop movements in the lipid bilayer
C
Proteins can remain confined within certain domains of the membranes
D
Many proteins remain completely embedded within the lipid bilayer
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