Question

Lynn Margulis developed the endosymbiont theory to explain the evolution of certain eukaryote organelles, such as chloroplast and mitochondria. According to this theory which of these events occurred to anvient prokaryote cell?

Answer 1

Answer:

The answer is C. The cell took in another ancient prokaryotic cell, which began living inside it.

Explanation:

• The Endosymbiont Theory explains the evolution of membrane bound organelles such as mitochondria and chloroplasts.
• According to the theory, mitochondria evolved when an ameoba like organism engulfed bacteria capable of cellular respiration.
• Similarly, chloroplasts were developed when the ameoba like organism engulfed cyanobacteria or blue-green algae capable of photosynthesis.
• These organisms survived inside the ameoba over millions of years to develop into mitochondria and chloroplasts.
• The fact that mitochondria and chloroplasts have their own circular DNA and ribosomes is evidence of the endosymbiont theory.