What does the term 'phloem' refer to in a tree?

The term 'phloem' refers specifically to the tissue in a tree responsible for transporting nutrients, particularly the sugars produced during photosynthesis, from the leaves to other parts of the tree. This function is crucial for the growth and development of the tree, as it ensures that all parts receive the necessary energy and nutrients to thrive.

Phloem is vital for maintaining the health and productivity of a tree. It is one of the two types of vascular tissue found in plants, the other being xylem, which transports water and minerals from the roots to the leaves. Understanding the role of phloem enriches comprehension of plant biology, particularly how trees operate and grow.