According to the Endosymbiotic Theory,mitochondria and Chloroplasts Evolved from Aerobic

question 19

Essay

According to the endosymbiotic theory,mitochondria and chloroplasts evolved from aerobic and photosynthetic bacteria that were engulfed and "took up" residence in a host prokaryotic cell.Use your knowledge of how plant and animal cells differ to answer the following questions:
A.Did the ancestral plant cell engulf both types of bacteria? Cite evidence to justify your answer.
B.Did the ancestral animal cell engulf both types of bacteria? Cite evidence to justify your answer.
C.If the answer to either A or B is yes,then which type of bacteria would have been engulfed first? Cite evidence to justify your answer.

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