at high concentrations of acetaldehyde ( 3.0 mm ) , significant aldehyde dehydrogenase activity can be found in the mitochondrial , light mitochondrial , microsomal and cytoplasmic fractions whereas , when the activity is determined with 15 microm acetaldehyde , the enzyme activity is enriched only in the mitochondrial fraction suggesting that this organelle will be the dominant site for the metabolism of acetaldehyde derived from ingested ethanol .
C0010834
cytoplasmic
C0026237
mitochondrial