The England international has started life in north London in promising fashion, scoring his first goal for the club at Aston Villa last week.
Cazorla has been impressed with Welbeck's clinical finishing and feels he can thrive at Emirates Stadium.
Welbeck provides us with something that we didn’t have before and we have to make the most of him and take advantage of having him in the teamSanti Cazorla
"Danny is a really different player to the ones we’ve had before at Arsenal," Cazorla said. "He’s a clinical finisher, he’s quick and he’s always looking for space.
"Olivier Giroud is another kind of striker. He’s good at headers because he’s tall and strong. Welbeck provides us with something that we didn’t have before and we have to make the most of him and take advantage of having him in the team."
Arsenal welcome Galatasaray to Emirates Stadium on Wednesday night. Having lost on matchday one of the Champions League, Cazorla admits there is extra pressure to get their European campaign up and running.
“It was a bad game [in Dortmund]," Cazorla said. "Now we are fully aware that we are almost obliged to win the next Champions League game because there may be problematic times for us [if we don't] so we'd better win.
"It’s true that Arsenal have a great record when it comes to the group stage. However, all that history doesn’t count now.
"The most important thing for Arsenal right now is to win the next game and that is going to change the scenario completely. Once we go through the group stage it becomes even more difficult to win games.
"Unfortunately for the past two seasons we’ve faced Bayern Munich, the toughest opponent [in the last 16], but I think that if we carry on and work hard we can go far in the competition."Copyright 2017 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source