ANATOMY

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: -Chloroplasts are green because they contain the pigment chlorophyll, which is vital for photosynthesis.

Detailed explanation-3: -Chloroplasts: These contain chlorophyll and are the site of photosynthesis.

Detailed explanation-4: -It is mainly found in mesophyll cells and guard cells of leaves. Chloroplasts are minute oval bodies bounded by a double membrane. Interior of chloroplast contains closely packed flattened sacs called thylakoid organised in grana. The thylakoid membrane contains the pigment chlorophyll.