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(Solved) (Latest ver. Aug 2020) - Enzyme calculations and Methane

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You are investigating the biochemical origins of cow methane emissions (belches and farts, to be blunt) which contribute to global warming.

Bacteria in the cow gut make methane and a key enzyme in the pathway is methyl-coenzyme M reductase. The turnover number of pure enzyme (mass 300 kDa) is 100 s-1. What is the specific activity of the enzyme in µmol.min-1.mg-1?

A cow typically 'emits' 100 L of methane gas a day. Given the concentration of methane in this gas is 0.05 M, how many mg of this enzyme does the cow gut contain?

 







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