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Mitochondria and chloroplasts used to be free-living. They used to be prokaryotes, but they got enveloped by other prokaryotes and their membrane became a double membrane because the first one stayed and the second one came from it being enveloped. Their DNA is also similar to prokaryote DNA. Their original cell membrane is also similar to a prokaryote's cell membrane.
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What part of the cell theory did Lynn margulis contribute to?
She concluded that some organelles found in eukaryotes were once free-living prokaryotes.
Are any organelles present in only plant cells?
Every cell has organelles. Prokaryotes were once thought to have no organelles but some have been found now. Eukaryotes have membrane bound organelles and prokaryotes do not.
Name 2 cell organelles having DNA?
Chloroplasts and Mitochondria are the organelles having DNA.
Is it accurate to say that organelles are floating freely in the cytosol?
no because they can't be free
Describe the proposed relationship between prokaryotes and the organelles in eukaryotes?
The endosymbiotic theory deals with the relationship between organelles in eukaryotes and prokaryotes. According to this theory organelles in eukaryotes originated separately from prokaryotes.
Which organelles were once free-living protists that got eaten but not digested by larger cells?
chloroplasts; mitochondria
How is cell evidence for evolution?
the presence of organelles like the lysosome and the mitochondrion which both have double membranes. this suggests that these organelles were once free-living organisms that were incorporated into a larger organism in what could be called a mutual symbiosis.
What part of the cell theory did Lynn margulis contribute to?
She concluded that some organelles found in eukaryotes were once free-living prokaryotes.
Are any organelles present in only plant cells?
Every cell has organelles. Prokaryotes were once thought to have no organelles but some have been found now. Eukaryotes have membrane bound organelles and prokaryotes do not.
How do you get portal for free if you already own portal 2?
Once in a while, Valve will have portal be free for a while.
Who said that organelles where once cells themselves?
Lynn Marguils and she said it in 1970.
Name 2 cell organelles having DNA?
Chloroplasts and Mitochondria are the organelles having DNA.
What is the matter that fills the organelles composed of water with free floating molecules?
Cytoplasm
Is it accurate to say that organelles are floating freely in the cytosol?
no because they can't be free
Does Just Cause 2 have free roam?
Once you have completed the first 2 missions on Just Cause 2, you can do what you want. So yes, Just Cause 2 does have free roam.
Is there free play in saints row 2?
yeah once you beat the game
Do you have to pay for Starcraft 2 after you buy it?
No, once you have a CD/License Key its free to play.
