Chapter 6

Last update by mayur on 03/27/2014
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Which of the following statements correctly describes some aspect of protein disposal fromprokaryotic cells?

A) Prokaryotes are unlikely to be able to excrete proteins because they lack an endomembranesystem.

B) The mechanism of protein excretion in prokaryotes is probably the same as that in eukaryotes.

C) Proteins that are excreted by prokaryotes are synthesized on ribosomes that are bound to thecytoplasmic surface of the plasma membrane.

D) In prokaryotes, the ribosomes that are used for the synthesis of secreted proteins are locatedoutside of the cell.

E) Prokaryotes contain large pores in their plasma membrane that permit the movement ofproteins out of the cell.



Answer:

C) Proteins that are excreted by prokaryotes are synthesized on ribosomes that are bound to the cytoplasmic surface of the plasma membrane.



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