1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Keeping in view the "fluid mosaic model" for the structure of cell membrane, which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other (described as flipflop movement)?
A
Both lipids and proteins can flip-flop
B
While lipids can rarely flip-flop proteins cannot
C
While proteins can flip-flop, lipids cannot
D
neither lipids, nor proteins can flip-flop
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Biological organization starts with:-
A
Cellular level
B
Atomic level
C
Organismic level
D
Submicroscopic molecular level
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which one of the following is not a constituent of cell membrane ?
A
Glycolipids
B
Proline
C
Phospholipids
D
Cholesterol
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Select the wrong statement from the following:
A
The chloroplasts are generally much larger than mitochondria
B
Both chloroplasts and mitochondria contain DNA
C
Both chloroplasts and mitochondria contain an inner and an outer membrane
D
Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane
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