"Come on, man, we're here at a World Cup, it's not a circus!"
Suarez tapped in midway through the first half after keeper Mohammed Al-Owais failed to grab the ball on a corner.
Ronaldo's 85th global goal made him Europe's all-time leading worldwide goalscorer as he broke Hungary legend Ferens Puskas's 62-year-old record.
The Atlas Lions, who lost 0-1 to Iran in their first game, lie bottom of the group without a point.
Despite their battling display, Morocco will rue the unforgivable defending that made all their subsequent good work irrelevant.
Joachim Low: 'Germany will not change game plan following Mexico loss'
The proof is in audio clips of his narration of the moment when Lozano placed a flawless kick to secure Mexico's early lead. Germany pressed in the second half but struggled to find the target. "If we go on like this, I'll be anxious ", he added.
Morocco end their World Cup campaign against Spain on June 25, looking to sign out of Russian Federation with at least a goal to their name.
They qualified for the finals without conceding a goal in six matches yet somehow opted against marking the most unsafe attacker at the tournament in the six yard box when Joao Moutinho swung in a cross from a short corner and Ronaldo duly buried the header.
Amrabat was furious at not being awarded a penalty after wrestling with Raphael Guerreiro and the entire squad erupted in outrage.
Nordin Amrabat impressed in attack for Morocco, and a superb save from Rui Patricio after a Younes Belhanda header helped keep Portugal ahead. The Portuguese will face Iran in their final match on Monday in Saransk.
Morocco were the better side over 90 minutes but could not turn their domination into goals.
The story, however, was mostly the same has it hand been in the first half, with the African side controlling the game, getting into some good positions and then failing to breakdown Portugal's defense in the final third.