Why is the venom of bee stings acid?

Bee venom is acidic primarily due to the presence of compounds like melittin and phospholipase A, which contribute to its overall pH. The acidity of the venom helps in causing pain and inflammation, which serves as a defense mechanism to deter predators and protect the hive. Additionally, the acidic nature of the venom can disrupt cellular functions in the victim, enhancing the effectiveness of the bee's sting.