Question:
During evolution, Mitochondria may have been acquired from
During evolution, Mitochondria may have been acquired from
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"Endo" = Inside; "Symbiosis" = Living together. Mitochondria are the bacteria that stayed for dinner!
Updated On: May 14, 2026
- Commensal Bacteria
- Archaebacteria
- Endosymbiotic Bacteria
- Parasymbiotic Bacteria
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The Correct Option is C
Solution and Explanation
Step 1: Concept
The Endosymbiotic Theory explains the origin of eukaryotic organelles.
Step 2: Analysis
It is widely accepted that mitochondria evolved from an aerobic alpha-proteobacterium that was engulfed by an ancestral host cell.
Step 3: Reasoning
Instead of being digested, the bacterium lived inside the host in a mutually beneficial relationship (endosymbiosis).
Step 4: Conclusion
Mitochondria were acquired from endosymbiotic bacteria. Final Answer: (C)
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