Multiple choice

Which of the following observations most strongly supports the view that mitochondrial membranes have Electron Transport System (ETS) enzymes?

  1. Mitochondria have a property to concentrate in the locomotive cells.

  2. Mitochondria have a folded inner membrane structure.

  3. Disruption of mitochondrial membrane yields out fragments that are able to synthesise ATP.

  4. A contractile protein capable of utilising ATP is obtained from mitochondria.
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C Correct answer
Explanation

If fragments of the mitochondrial membranes are able to synthesise ATP, it is proved that the ATP synthesising enzymes are localised in the inter-membranous space. ATP synthesis is achieved only by the path of Electron Transport Chain, so the enzymes involved in the chain are bound to be located in there.

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