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State whether the following is true or false.
Prokaryotic cells contain no internal membranes of any kind.

  • A.True
  • B.False
  • C.True only at large scales
  • D.False only at small scales

Answer: B

Many have extensive internal membranes, the thylakoids of cyanobacteria and the folded mesosomes of some bacteria among them. What they lack is a nucleus and the other membrane-bound organelles, which is a narrower claim.

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