Vacuoles are essentially sacs surrounded by a membrane. They are used by cells as temporary storage sites. They often store food, enzymes, and other materials needed by the cell, and some vacuoles store waste products.
        
             
        
        
        
An acid because if its less than 5 its an acid
        
                    
             
        
        
        
Canola oil, potato chips, cookies, other sugary treats, bacon, other processed meats, alcohol, milk, other conventional dairy products, refined grain products.
There are more but here are a few, hope this helps!