The part of plants that contains structures needed to absorb sunlight and carbon dioxide is the fill in the blank text field 1 type text here. The cells inside this structure contain many green organelles called fill in the blank text field 2 type text here. Inside each of these organelles are stacks of fill in the blank text field 3 type text here that contain the green pigment fill in the blank text field 4 type text here that absorbs sunlight needed to power the light-dependent reactions of photosynthesis.