Flagella occur in both prokaryotes and eukaryotes. Which of the following statements DOES NOT describe how the flagella of prokaryotes and eukaryotes differ?
A. Eukaryotic flagella have microtubules in a cytoskeleton whereas prokaryotic ones do not.
B. Eukaryotic flagella have the motor protein dynein whereas the prokaryotic one does not.
C. The eukaryotic flagellum is covered by the plasma membrane whereas that of the prokaryotes is not.
D. Prokaryotic flagella have a basal apparatus and hook that rotates the filament whereas eukaryotic flagella do not.
E. The filament of eukaryotes is multilayered whereas that of prokaryotes is a single strand.
E. The filament of eukaryotes is multilayered whereas that of prokaryotes is a single strand.
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The system by which organisms are named is referred to as
A. systematics. B. naming. C. nomenclature. D. cladistics.
During DNA replication, nucleosomes must ____ ahead of the replication fork and ____ after DNA is replicated
a. disassemble; reassemble b. reassemble; disassemble c. unwind DNA; disassociate d. synthesize primers; proofread e. cut DNA; ligate DNA
Because of its negative charge, there is more _______ in a cell than in the extracellular fluid.
a. potassium (K – ) b. chlorine (Cl – ) c. sodium (Na + ) d. potassium (K +
The movement of water through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration is called ________.
a) solubility b) osmosis c) metabolism d) denaturation e) diffusion