The only cell organelle seen in prokaryotic cell is
(a) mitochondria
(b) ribosomes
(c) plastids
(d) lysosomes
Answer (b)
Prokaryotic organisms lack membrane bound organelles like plastids, lysosomes, mitochondria etc.
All the cells need to have ribosomes to manufacture proteins and prokaryotes are equipped with 70S ribosomes.
Therefore, option (b) is correct.