Can it function without it's display?

I understand the display contains the following:

- screen

- bluetooth antenna

- wifi antenna

- isight camera

- some part of the sleep/wake mechanism

I use my laptop as a desktop like many others.

Let's say I don't need bluetooth, wifi and isight.

Can I use my laptop without it's display attached?

(This is semi-retorical since I've seen photos of such "configurations", where only an external display was connected and apparently it seemed to work.)

In fact I'm only asking the following; if I remove it's original display:

-will the "normal" sleep/wake/restart/shutdown functions still be working?

If I leave my desk, will it normally go to sleep after x minutes if such a setting is made in "Energy saver"?

Will it normally wake up if I press a key?

Will it restart properly? Will it shutdown properly?

-will it function 100% correctly, given it's missing parts (which I don't actually need)?