he six parts of the stem are the nodes, internodes, buds, leaves, vascular bundles, and the terminal bud. The nodes are the points on the stem where leaves are attached, while the internodes are the spaces between the nodes. Buds are small, undeveloped shoots that can grow into new branches or flowers. Leaves are the structures that grow from the nodes and are responsible for photosynthesis. Vascular bundles are the structures that transport water and nutrients throughout the plant. The terminal bud is located at the tip of the stem and is responsible for the plant's growth in length.