On which tax form do you list exemptions?

Exemptions are listed on the 1040 series. On Form 1040 and Form 1040A, the Exemptions Section is the third section on the first page and covers lines 6a through 6d.

On Form 1040EZ exemptions are in the Income Section. You don't identify your exemptions by name. Instead, because you can only file Single or Married Filing Jointly on Form 1040EZ, you enter on line 5 either $9,350 for Single or $18,700 for Married Filing Jointly or a reduced amount according to the 1040EZ worksheet if your parents are claiming you as a dependent.