Akademik

The amount or quantity produced or returned, often measured as a percentage of the starting material; e.g., a y. in an enzyme preparation is equal to the units of enzyme activity recovered at the end of the preparation divided by the total units observed in the starting material.

- quantum y. (φ) the number of molecules transformed ( E.G., via a reaction) per quantum of light absorbed; the inverse of the quantum requirement. SYN: quantum efficiency.