V How many millimoles galactose are present in 250 ul of a 5 mM solution of galactose? V How many milligrams of starch need to be dissolved in 10 mL of water to make a 5% (w/v) solution? v We dissolve 15 µmoles of glucose in 5 ml of water. What is the concentration of this solution in µM? What is the concentration of this solution in µg/mL?

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A:

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Nitrogen metabolism

Nitrogen metabolism is the synthesis, utilization or uptake, breakdown, and excretion of nitrogenous compounds in the body. The nitrogen metabolism encompasses nitrogen fixation, biosynthesis, and the breakdown of amino acids, purines, and pyrimidine. Since nitrogen-containing compounds are required for various life processes, nitrogen is an important element of life.