Two eukaryotic organelles that are hypothesized to be the result of endosymbiosis are the ________ and the ________.
A) nucleus / Golgi body
B) mitochondrion / chloroplast
C) endoplasmic reticulum / Golgi body
D) hydrogenosome / chloroplast

Question

Quizplus · Accepted Answer

The mitochondrion and chloroplast are both hypothesized to have originated from free-living prokaryotes that were engulfed by ancestral eukaryotic cells through endosymbiosis. The mitochondrion is believed to have arisen from the engulfment of an aerobic bacterium, while the chloroplast is believed to have arisen from the engulfment of a photosynthetic bacterium.

Two Eukaryotic Organelles That Are Hypothesized to Be the Result