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Question
Biology
Posted 3 months ago
Which cell structure is thought to have arisen through an endosymbiosis in plant but not animal cells?
Choose 1 answer:
(A) Cell wall
(B) Chloroplast
(C) Mitochondria
(D) Ribosome
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Answer from Sia
Posted 3 months ago
B
Key Concept
Endosymbiosis
Explanation
Chloroplasts are thought to have arisen through an endosymbiotic event where a eukaryotic cell engulfed a photosynthetic cyanobacterium. This event is specific to plant cells and some protists, but not animal cells.
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