Question

prokaryotic and eukaryotic cells
matrix
atp synthase
dna
intermembrane space
granules
inner membrane
ribosomes
dna
chloroplasts
mitochondria
out
✓ select
the endosymbiotic theory holds that select , commonly referred to as
the \powerhouses of the cell,\ were originally single-celled organisms that were
engulfed by bacteria.

Explanation:

The endosymbiotic theory states that mitochondria (and chloroplasts) were once free - living prokaryotes. Mitochondria are known as the “powerhouses of the cell” because they are responsible for producing ATP through cellular respiration. Ribosomes are involved in protein synthesis, chloroplasts are related to photosynthesis in plants (not the “powerhouses” of all cells), and DNA is genetic material. So the correct choice is mitochondria.

Answer:

mitochondria