If a Quarterback is sacked in his end zone does the other team receive possession of the ball and 2 points?

The other team would only get the ball under certain conditions. If the quarterback was sacked on the 4th down, then the opposing team would get the ball. That is not due to the sacking, however, it is due to the fact that you only get 4 downs to gain 10 yards before a turnover. If a quarterback is tackled and fumbles the ball, the other team can get the ball, but the quarterback will not be considered sacked.