The Endosymbiosis Theory

The video discusses the origin of eukaryotic cells, focusing on the endosymbiosis theory proposed by Lynn Margulis. This theory suggests that mitochondria and chloroplasts originated from bacteria engulfed by ancestral eukaryotic cells. Evidence includes similarities in DNA, membranes, and reproduction methods between these organelles and bacteria. The theory is supported by various scientific findings, highlighting the evolutionary relationship between prokaryotes and eukaryotes.

What is the endosymbiosis theory and who first proposed it?

How did early eukaryotes likely develop the membrane-bound nucleus?

What evidence supports the endosymbiosis theory regarding mitochondria?

In what way are chloroplasts similar to mitochondria?

What does the presence of circular DNA in mitochondria and chloroplasts suggest?