Multiple Choice
Which of the following is not evidence of the endosymbiotic theory?
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5. Cell Components
Endosymbiotic Theory
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What does the endosymbiotic theory state?
A
Eukaryotic cells were the first life forms on Earth, from which prokaryotic cells later evolved.
B
Eukaryotic cells originated through a symbiotic relationship between different prokaryotic cells.
C
Prokaryotic cells evolved directly into eukaryotic cells without any symbiotic relationships.
D
Mitochondria and chloroplasts in eukaryotic cells are unrelated to any prokaryotic ancestors.
Verified step by step guidance1
The endosymbiotic theory is a scientific theory that explains the origin of eukaryotic cells from prokaryotic organisms.
According to this theory, certain organelles within eukaryotic cells, specifically mitochondria and chloroplasts, originated as separate prokaryotic cells that were engulfed by a host cell.
These engulfed prokaryotic cells formed a symbiotic relationship with the host cell, meaning they lived together in a mutually beneficial arrangement.
Over time, the engulfed prokaryotic cells became integral parts of the host cell, evolving into the organelles we see today in eukaryotic cells.
Evidence supporting this theory includes the fact that mitochondria and chloroplasts have their own DNA, which is similar to bacterial DNA, and they replicate independently of the cell in which they reside.
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