Trouts picked himself up and slid the penalty toward Bell in the Mo' goal who despite getting a hand on the ball couldn't keep it out after hitting his knee off the post on the way down.
Montrose were reduced to ten man when Hugh Davidson fouled Paul Paton and picked up his second booking with 4 minutes left.
QUEEN'S PARK: David Crawford, Paul Paton, Mick Dunlop, Stephen Canning, Damiano Agostini, Alan Trouten, Stuart Kettlewell, Paul Cairney, Paul Ronald (Tony Quinn), David Weatherston, Mark Ferry
SUBS NOT USED: Mark Cairns, Robert Dunn, Frankie Carroll
GOALSCORER(S): Alan Trouten (13, pen 73)
BOOKED: Mick Dunlop
REFEREE: Mike Tumilty
MAN OF THE MATCH: Alan Trouten