|"2.amplifying the strength of the switch"|
Umm, No. Only a repeater, bridge, hub or another switch will amplifies the strength of a switch and only if they are placed half way between the max distance of ethernet.
The only reason I know of for a patch panel is to identify which port belongs to which room and its jack. If there is a problem with a switch you can easily identify which rooms are affected and move their connection over to a new switch.
They are also handy when doing V-Lans so you can identify which v-lan the computer should be connected to.