Contact lens solution is salty in order to match your tears

It is isotonic because contact lenses that we wear have been formulated to be isotonic,which means they have the same osmotic pressure as the tear film in our eye

Alright, i'm gonna try to explain this as good as possible. the law of conservation is like a collection overtime. it never changes though. no matter how you change the constituent parts.

Lysosomes contain digestive enzymes (lysozyme) and in digestion of different biomolecules like proteins, fats, starch, etc.cleans the cell by destroying damaged organellesprotects cells from certain virus/bacteria by killing them