LIFE SCIENCE

Detailed explanation-1: -In plants and algae, which developed much later, photosynthesis occurs in a specialized intracellular organelle-the chloroplast. Chloroplasts perform photosynthesis during the daylight hours. The immediate products of photosynthesis, NADPH and ATP, are used by the photosynthetic cells to produce many organic molecules.

Detailed explanation-2: -Photosynthesis takes place inside the chloroplasts that sit in the mesophyll of the leaves. The thylakoids sit inside the chloroplast and they contain chlorophyll which absorbs the different colours of the light spectrum to create energy (Source: Biology: LibreTexts).

Detailed explanation-3: -Part of the photosynthesis reactions occur in an internal membrane within the organelle. The chloroplast contains many of these internal membranes, making photosynthesis very efficient. These internal membranes stack on top of each other, just like a stack of pancakes.

Detailed explanation-4: -The granum is the site of light reaction during photosynthesis, while the stroma is the site of dark reaction. There are two stages to photosynthesis. In the first step of the light reaction, chlorophyll in the grana absorbs light.

Detailed explanation-5: -Expert-Verified Answer Chloroplasts trap the solar energy from the sun and thus this energy is required by plants to make their own food and the main thing chlorophyll is present only in chloroplasts . So photosynthesis Takes place inside chloroplast.