Police opened an investigation on Monday after receiving complaints regarding an offensive post on social media and later announced a teenager had been arrested.
"We've arrested and charged a 17-year-old male youth in connection with an offensive social media post during the Celtic v Rangers SPFL match yesterday," Greater Glasgow Police said in a statement on Twitter.
"A report will be sent to the Procurator Fiscal."
Kamara was furious after Slavia Prague centre-back Ondrej Kudela leaned into his ear and said something while covering his mouth, sparking a melee in the final stages of their round-of-16 tie.
Slavia Prague denied the allegations and claimed Kudela had been assaulted by Kamara after the game. UEFA announced on Friday that it was investigating both incidents.
As a result, Rangers and Celtic did not kneel and decided to stand before the derby with Celtic interim manager John Kennedy saying taking a knee has "lost its impact."
"We wanted to send out a strong message and it was an easy decision. You saw the situation on Thursday and that is going to get taken care of.
"But I feel confident saying that all our Black players have received racial abuse this season. That's from social media platforms and this is a key message to them. Action has to be taken -- enough is enough."
On Saturday, Dundee United and Motherwell also opted against taking a knee. Motherwell said it had become an "empty gesture" in the fight against racism.
Scotland head coach Steve Clarke also confirmed that the national team will not take a knee before Thursday's 2022 World Cup qualifier against Austria and will instead "stand in solidarity with the fight against racism."