Final answer:
The structure of large vacuoles and thin, flexible cell walls in the non-green parts of a plant allows parenchyma tissue to expand and store sugars, lipids, and water.
Step-by-step explanation:
The structure of large vacuoles and thin, flexible cell walls in the non-green parts of a plant, such as a potato, enables the parenchyma tissue to expand and store sugars, lipids, and water. This allows the tissue to act as a storage reservoir for essential nutrients and water, helping the plant survive during periods of drought or when resources are scarce.