Final answer:
The site of photosynthesis in a gizmo is the chloroplast, which contains thylakoids with chlorophyll that absorbs light and initiates the photosynthetic process.
Step-by-step explanation:
In a gizmo, the site of photosynthesis is the chloroplast. Chloroplasts are specialized organelles within autotrophic eukaryotic cells, such as plants, that are responsible for capturing light energy and converting it into chemical energy through the process called photosynthesis.
These organelles have a double membrane structure, with an outer and inner membrane, and within them, they contain disc-shaped structures called thylakoids stacked in groups known as grana. Embedded within the thylakoid membranes are the pigment molecules chlorophyll, which absorb light and initiate photosynthesis, and proteins that are part of the electron transport chain.