“The mechanistic basis of these results can be considered at two levels, the enzymological and the evolutionary.”

“There is now enzymological and cell biological evidence that a metabolic sequence is activated during senescence.”

“Cell death has been classified according to morphological appearance, enzymological criteria, functional aspects or immunological characteristics.”

“Oxygen plays a role in enzymatic and cellular metabolic reactions necessary for cell growth and proliferation.”

“And what about the residuals of emerging processes like gasification, enzymatic hydrolysis, depolymerization, biodiesel production, etc?”

“Attempts have been made to look into the effects of xenobiotics on enzymatic system responsible for ecdysteroid metabolism.”