Cytochrome c is an iron-containing enzyme found in the cells of all aerobic organisms and If cytochrome c is 0.43% by mass, then its minimum molecular weight is 13023.2 g .
Cytochromes are the main electron carries present in the electron transport chain . Minerals associated with cytochromes are Fe and Cu .
Calculation ,
100 g of enzyme contains 0.43 g Fe
X g of enzyme will contains 56 g of Fe
∴ 0.43 × X = 5600
X = 5600 / 0.43 = 13023.2 g or 13 kg/mol
Therefore , the minimum molecular weight of the enzyme is 13023.2 g or 13 kg/mol .
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