Mitochondria were acquired by host cells through a process known as endosymbiosis. This theory suggests that an ancestral eukaryotic cell engulfed an aerobic prokaryote (likely a type of proteobacteria) and formed a mutually beneficial relationship. Over time, this engulfed prokaryote became an integral part of the host cell, eventually evolving into the mitochondria we see in eukaryotic cells today. Key features supporting this theory include the presence of their own DNA, which is similar to prokaryotic DNA, and their double-membrane structure, indicative of a past engulfing event.
Which of the following is true about how mitochondria were acquired by host cells? (1 point)
1 answer