The answers to these questions have a lot to do with two important organelles: mitochondria and chloroplasts. Chloroplasts are organelles found in the broccoli’s cells, along with those of other plants and algae. They capture light energy and store it as fuel molecules in the plant’s tissues.
Many evolutionists believe Lynn Margulis’ idea that eukaryotic cells came about as a prokaryotic cell ‘ate’ (by a process called endocytosis) other prokaryotic cells, which then became the mitochondria and chloroplasts.
Explain the origin of mitochondria and chloroplasts The fossil record and genetic evidence suggest that prokaryotic cells were the first organisms on Earth. These cells originated approximately 3.5 billion years ago, which was about 1 billion years after Earth’s formation, and were the only life forms on the planet until eukaryotic cells …
The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes. Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear. Mitochondria and chloroplasts have their own ribosomes …
