Chemistry of Life, The Journey of a Carbon Atom

Asking for the normal bond the protein gives you the single bond and gives you a name tag, it says "Saturated Lipid", not really knowing what that means you continue traveling but eventually you reach a dead end, there is a small opening in the membrane that says "Liquids only" Unfortunately since you are a solid you need a gate or vesicle to move you into the other parts of the cell.