AP BIOLOGY

Detailed explanation-1: -Chlorophyll, the primary pigment used in photosynthesis, reflects green light and absorbs red and blue light most strongly. In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.

Detailed explanation-2: -There are two distinct regions present inside the chloroplasts. One is grana and the other is stroma. Grana is made up of stacks of disc-shaped structures known as thylakoids. These contain the chlorophyll molecule.

Detailed explanation-3: -Chloroplasts are not responsible for the colour of leaves.

Detailed explanation-4: -Complete answer:-Chlorophyll is a pigment necessary for photosynthesis where it helps plants to absorb energy from light. It is located in the thylakoid membranes of the chloroplasts.-Thylakoids are membrane-bound compartments present inside chloroplasts.