Ulster head coach Mark Anscombe has made seven personnel and two positional changes to the team that lost to the Newport Gwent Dragons last weekend.
David McIlwaine starts on the right wing in place of Trimble, while Darren Cave returns to the back-line at outside centre with Luke Marshall moving inside to the number 12 spot.
Michael Allen is selected on the left wing, with Ian Porter picked at scrum half in place of Paul Marshall who is named on the replacements bench.
Declan Fitzpatrick has been chosen to start at tighthead prop, while in the back row Roger Wilson moves from number 8 to blindside flanker, Sean Doyle is named at openside flanker with Nick Williams starting at Number 8.
Iain Henderson is named amongst the reserves and will make his first appearance for Ulster this season if he comes on.
Looking ahead to the game, Anscombe said: "A good squad is one that can respond to poor performances and bounce back.
"What we have to do is to right the wrongs and get our accuracy a bit better than it was last week. If we can get that right then we can get a reasonable performance."
A limited number of tickets for the match are still available and can be purchased via www.ulsterrugby.com/tickets. Ulster v Glasgow Warriors will be shown live on BBC 2 Northern Ireland and on the BBC Sport NI website.
ULSTER (v Glasgow Warriors): Jared Payne; David McIlwaine, Darren Cave, Luke Marshall, Michael Allen; Paddy Jackson, Ian Porter; Callum Black, Rob Herring, Declan Fitzpatrick, Johann Muller (capt), Dan Tuohy, Roger Wilson, Sean Doyle, Nick Williams.
Replacements: Niall Annett, Tom Court, Ricky Lutton, Iain Henderson, Chris Henry, Paul Marshall, James McKinney, Ricky Andrew.