Which one of the following is an organelle that is NOT found in prokaryotic cells?
Cell wall
Mitochondria
Plasma membrane
Ribosome
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-1 – 2018
A) Cell wall: Many prokaryotes have a cell wall (though different in composition from eukaryotic cell walls like those in plants or fungi).
B) Mitochondria: Mitochondria are membrane-bound organelles responsible for cellular respiration and ATP production in eukaryotic cells. They are *not* found in prokaryotic cells. In prokaryotes, respiration occurs in the cytoplasm and across the cell membrane.
C) Plasma membrane: The plasma membrane (cell membrane) surrounds the cytoplasm and is present in *all* cells, both prokaryotic and eukaryotic.
D) Ribosome: Ribosomes are responsible for protein synthesis and are found in the cytoplasm of *all* cells, both prokaryotic and eukaryotic (though prokaryotic ribosomes are 70S, and eukaryotic ribosomes are 80S).