Exercise: Membrane Structure And Functions

Questions for: Membrane Structure And Functions

Which of the following is not found in membranes?
A:
Glycoproteins
B:
Glycolipids
C:
Nucleic acids
D:
Phospholipids
Answer: C
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In membranes, lipids are
A:
glycerophospholipids
B:
sphingolipids
C:
sterols
D:
all of these
Answer: D
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Which type of molecule spans the membrane, from its inner to outer surface according to the Fluid mosaic model of cell membranes?
A:
Cholesterol
B:
Phospholipid
C:
Protein
D:
Carbohydrate
Answer: C
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The plasma membrane is a selectively permeable barrier due to presence of specific transport
A:
proteins
B:
amino acids
C:
carbohydrates
D:
none of these
Answer: A
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Biological membranes are like water beds because
A:
they are always moving
B:
they (normally) do not leak their contents
C:
the membrane is thin compared to the enclosed volume
D:
all of the above
Answer: D
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