What is the role of the stem in a plant?

The stem of a plant plays a crucial role in supporting the leaves, flowers, and fruits. This structural support is vital as it holds the plant upright, allowing leaves to access sunlight and air, which are essential for photosynthesis. In addition to support, the stem also contains vascular tissues, such as xylem and phloem, that facilitate the transport of water, nutrients, and sugars between the roots and the other parts of the plant. By maintaining this upright position, the stem enables optimal growth and nutrient distribution throughout the plant, which is critical for its overall health and survival.