Question

what theory states that prokaryotic cells engulfed cells capable of converting chemical energy into atp? cells endosymbiosis endocytosis exocytosis

Explanation:

The endosymbiosis theory posits that prokaryotic cells engulfed cells (like mitochondria - capable of converting chemical energy into ATP) and a symbiotic relationship developed over time. Endocytosis is a general process of cell - membrane invagination to take in substances, exocytosis is for expelling substances, and "cells" is too general a term.

Answer:

endosymbiosis