( ( Explain ( what ( happens ( to ( enzymes ( if ( ( temperature and ) pH ) ) ) ) ) ) ) ( continually ( increase . ) ) )
(ROOT (S (NP (NP (NNP Explain)) (SBAR (WHNP (WP what)) (S (VP (VBZ happens) (S (VP (TO to) (VP (VB enzymes) (PP (IN if) (NP (NN temperature) (CC and) (NN pH)))))))))) (ADVP (RB continually)) (VP (VBP increase)) (. .)))
Explain what happens to enzymes if temperature and pH continually increase.
(ROOT (S (NP (DT All) (NNS enzymes)) (VP (VBP have) (NP (DT an) (JJ optimal) (NN temperature) (CC and) (NN ph.)))))