Listen was 11 when i made this, i'm only 12 and not a spelling genius. A Quasar is a Super Massive Black Hole that holds galaxies together and imits lots of energy through magnetic distorsions!
No, a quasar (Quasi-Stellar Radio Source, you misspelled quite a bit) is not a supermassive black hole, it's actually a supermassive /galaxy/, that is far enough away to appear to be a star (Quasi-stellar). And 'gravity bends light mode' is actually there - Newtonian Gravity.
For inforamtion a QUSAR is a QUwsy-StelAr Radio corce or a super massive black hole that sits at the midle of large galaxys(e.g. Milky Way and Adromeda galaxy).