True about enzyme specificity:
The specific activity of enzyme is usually expressed as p mol of substrate transformed to product per minute per milligram of enzymes under optimal condition of measurement.1 international unit (IU) =1 micromole / minuteModern unit of enzyme activity, 1 katals (kat) =1 mole/second (i.e. conservation of 1 moles of substrate per second)Enzymes are highly specific, interacting with one or few specific substrates & catalyzing only one type of chemical reaction Rate of metabolic processes may thus be regulated by changes in the catalytic efficiency of specific enzymes.
Amount of enzyme required per second, per mole or product formation
Number of sites per substrate
Amount of enzyme binding with various substrates
Amount of enzyme causing transformation of 1 mol of substrate per minute under standard condition