Threlativimpermeability of membranes to water solublmolecules is a result of
A) the nonpolar nature of water.
B) the presence of large proteins that extend through both sides of membranes.
C) the presence of inorganic salt crystals scattered through some membranes.
D) the presence of cellulose and waxes.
E) the presence of phospholipids in the lipid bilayer.
Correct Answer:
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Q34: Elephants arlarganimals becausthey
A)have bigger cells.
B)possess expandable cells.
C)are
Q35: _ is (are) useto observwholliving cells.
A)A scanning
Q36: Which statement is TRUof plasma membranes?
A)They have
Q37: Hydrophobic interactions of thtails of phospholipids can
Q38: A hypothetical "microbullet" shot through a phospholipids
Q40: Thphospholipids of most membranes have
A)a hydrophobic head
Q41: Which arexamples of prokaryotes?
A)protozoa
B)bacteria
C)algae
D)fungi
E)mosses
Q42: On which of thfollowing arpolypeptidchains constructed?
A)Golgi bodies
B)mitochondria
C)chloroplasts
D)ribosomes
E)endoplasmic
Q43: Which of thfollowing molecules carries thgenetic information?
A)DNA
B)proteins
C)simple
Q44: Which of thfollowing terms CANNOT buseto characterizeukaryotic
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