Human cells contain mitochondria,which are responsible for processing the energy needed by our cells.Remember that the ancestors of mitochondria may once have been free-living prokaryotes.If mitochondria were still considered to be separate organisms within our cells,which of the following would best describe our relationship with them?

Question

Quizplus · Accepted Answer

Mitochondria are responsible for processing energy needed by our cells, and they have a symbiotic relationship with our cells. The ancestors of mitochondria were once free-living prokaryotes that were engulfed by early eukaryotic cells, and over time, they evolved to become an integral part of our cells. Mitochondria provide energy to our cells in exchange for a protected environment to live in, so their relationship with our cells is mutualistic rather than parasitic, competitive, or pathogenic.

Human Cells Contain Mitochondria,which Are Responsible for Processing the Energy