What is the best current theory for where mitochondria and chloroplasts come from? Explain. a. they...
What is the best current theory for where mitochondria and chloroplasts come from? Explain.
a. they are living organisms that have entered other cells.
b. they are proteins that have evolved into organelles.
c. they are phospholipid membranes that have evolved into organelles.
Homework Answers
a.) They are living organisms that have entered other cells.
According to endosymbiont theory, mitochondria and chloroplasts are evolved from the bacteria which are prokaryotic organisms. There are too many similarities between the bacteria and these two organelles. Like bacteria both the organelles do have their independent genetic material which is ds circular DNA. Mitochondria and chloroplast are of the same size as the bacteria. And these organelles also divide by binary fission like bacteria.
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