Question

Where did mitochondria come from?

Answer 1

Mitochondria:

1. Mitochondria are membrane-bound cell organelles that provide the majority of chemical energy.
2. An outer membrane, an inner membrane, and a gel-like substance known as the matrix make up the structure.
3. The intermembrane gap separates the outer and inner membranes, which are made up of proteins and phospholipid layers.
4. Mitochondria produces an energy molecule that stores the chemical energy in the form of ATP ( Adenosine tri phosphate).

Origin of mitochondria:

1. The endosymbiotic theory proposes that mitochondria (and chloroplasts) are descended from specialized bacteria (most likely purple nonsulfur bacteria)
2. These bacteria somehow survived endocytosis by another prokaryote or cell type and got absorbed into the cytoplasm.
3. That's the reason for having their own genetic material.
4. Both mitochondria and chloroplasts have their own genetic material.