AP BIOLOGY

Detailed explanation-1: -Chloroplasts contain saclike photosynthetic membranes called thylakoids, which are interconnected and arranged in stacks known as grana. Pigments are located in the thylakoid membranes. The fluid portion outside of the thylakoids is known as the stroma.

Detailed explanation-2: -The chlorophyll molecules are present in the chloroplasts of plant cells. In the chloroplasts, there are membrane bound structures called thylakoids. The thylakoid membrane surrounds an aqueous lumen. The thylakoid membrane is where the chlorophyll molecules are present.

Detailed explanation-3: -In thylakoid membranes, chlorophyll pigments are found in packets called quantasomes. Each quantasome contains 230 to 250 chlorophyll molecules.

Detailed explanation-4: -Chloroplasts contain an abundance of saclike photosynthetic membranes called thylakoids .

Detailed explanation-5: -Thylakoids are interconnected disc-like sacs of the internal membrane system of the chloroplast. They are found suspended in the stroma. Thylakoids are arranged in a stack, which is called grana. The thylakoid membrane contains the photosynthetic pigment chlorophyll, which absorbs the sunlight during photosynthesis.