AP BIOLOGY

Detailed explanation-1: -The light reactions of photosynthesis take place in the thylakoid membrane, whereas the dark reactions are located in the chloroplast stroma.

Detailed explanation-2: -The light reaction takes place in the thylakoid discs. There, water (H20) is oxidized, and oxygen (O2) is released. The electrons freed up from water are transfered to ATP and NADPH. The dark reaction occurs outside of the thylakoids.

Detailed explanation-3: -(i) Light reactions occur in grana thylakoids whereas dark reactions occur in stroma of chloroplasts.

Detailed explanation-4: -The dark reactions of photosynthesis occur in the stroma (aqueous fluid surrounding the stacks of thylakoids) of the chloroplast where they utilize the products of the light reaction. In the dark reaction, plants use carbon dioxide with ATP and NADPH from the light reactions to produce glucose.

Detailed explanation-5: -The light-independent reactions of photosynthesis take place within the stroma. It contains enzymes that work with ATP and NADPH to “fix” carbon from carbon dioxide into molecules that can be used to build glucose.