I guess that would apply to any galaxy, since stars will have a tendency of accumulating towards the center.
The quasar.
The milky way
It seems that just about EVERY galaxy has a huge ("supermassive") black hole in its center.
First, the center of a galaxy is not a "bright light". It's a mathematical point. This is a technical quibble, and it is true that the centers of spiral galaxies (like the Milky Way) tend to be brighter than the rest of the disk due to the density of the stars there. The reason we don't see the center of our own galaxy as a particularly bright patch is because we don't see by radio waves. In the radio spectrum, the center of the galaxy is quite bright. However, we see by visible light, and there's a lot of dust and gas between us and the center of the galaxy, which blocks out most of the wavelengths we can see.
Spirals.
A bulge is a tight group of stars found at the center of most spiral galaxies. The bright spot an the center of the galaxy in the picture above is the bulge. If this galaxy were seen from the side the collection of stars would create a bulge (spheroid) expanding out from the otherwise rather flat galaxy.
No. A Quasar is a Black hole in center of some Galaxies. I think our Galaxy has one of them.
a spiral galaxy like the milky way
Bright, distant, powerful, energetic, at the center of the galaxy.
Probably the same as the center of YOUR galaxy.
the spiral galaxy is very bright because of its stars, that's why our galaxy is called the milky way because it looks milky and our galaxy(the milky way) is located in one of the arms of a spiral galaxy!
The Andromeda Galaxy has an apparent magnitude of +3.44
That probably refers to a quasar. Quasars are related to gigantic black holes.