Golgi bodies, or golgies.
structure
The endoplasmic reticulum is the organelle that's looks like a stack of sacs.
Golgi bodies, or golgies.
Golgi bodies, or golgies.
chloroplast
Golgi Body
The description fits the structure of the Golgi apparatus, which is composed of closely stacked membrane-bound sacs responsible for processing, modifying, and packaging proteins for secretion or for delivery to other cellular organelles.
Closely stacked flattened sacs on plants only
Chloroplast having flat thallkoids are only in plant cells .
That description matches the structure of a chloroplast, which is found in plant cells and is responsible for photosynthesis.
Golgi Body
Closely stacked flattened sacs in plants refer to the thylakoids found within chloroplasts. These thylakoids contain chlorophyll and are essential for photosynthesis, where they capture light energy to convert carbon dioxide and water into glucose and oxygen. The arrangement of thylakoids into stacks, known as granum, maximizes the surface area for light absorption.