Carbonyl cyanide m-chlorophenyl hydrazone (CCCP) is an ionophore that allows the free passage of protons through membranes and is a metabolic poison of mitochondria. A researcher tested CCCP on the green alga Hydrodictyon africanum. Results showed that CO2CO2 fixation was severely inhibited, whereas O2O2 release and production of NADPH were only mildly affected. What is the MOST likely explanation of the results for the inhibition of carbon fixation?   A. CCCP disrupts the synthesis of ATP at the mitochondrial membrane.   B. CCCP inhibits splitting of water at the thylakoid membrane.   C. CCCP inhibits the flow of electrons at the mitochondrial membrane.   D. CCCP disrupts the synthesis of ATP at the thylakoid membrane.

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Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.