In plants, what is an example of an organ?

Plants have various organs, each serving a specific function that contributes to the overall health and growth of the organism. The stem, leaf, and root are all essential components of a plant's anatomy.

The stem provides support for the plant, serving as a conduit to transport nutrients and water between the roots and leaves. It also holds the leaves up to the light for photosynthesis and may store nutrients.

Leaves are the primary sites for photosynthesis, where the plant converts sunlight into energy using chlorophyll, the green pigment. They are specially adapted to maximize light capture and gas exchange, which is essential for the plant's survival.

Roots anchor the plant in the soil, absorbing water and nutrients necessary for growth. They also store energy and can help in vegetative reproduction in some species.

Therefore, recognizing that all three parts are considered organs within the plant system illustrates the complexity of plant life and their interdependent functions. Each organ plays a critical role, making "all of the above" the most comprehensive choice.