Cell membranes typically display asymmetry. What does this mean?
A) The two leaves of a bilayer contain different collections of lipids and proteins.
B) The fatty acyl chain on C-1 of a membrane lipid is usually different from that on C-3.
C) Only one stereoisomer is ever seen at the chiral C-2 of the glycerol residue in a membrane lipid.
D) Membrane lipids only have cis double bonds, never trans .
Correct Answer:
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Q35: Which of the following four fatty acids
Q36: How does the presence of cis double
Q37: Biological waxes are composed of
A) glycerol and
Q38: Lipids differ from most other biomolecules because
Q39: Sphingolipids are particularly important in these structures:
A)
Q41: The distribution of lipids in membranes is
A)
Q42: Membranes are generally symmetrical, i.e., the outer
Q43: Where can membrane proteins be located?
A) entirely
Q44: How do the membranes of plant and
Q45: Which property has not been observed for
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