Lets start a discussion?
What are stops of light, how do they influence your image?
Does ISO have anything to do with light?
[ I'm sorry I confused many. The question should had been "If you lock your Aperture and Shutter Speed, and then change your ISO from 100 to 1600... did your camera sensor actually collect any more light?" or "Does ISO have anything to do with the light captured by the sensor?"]
Please use the reply, comments.