The Role of Xylem and Phloem in Plant Transport System

The video tutorial explains the transport systems in plants, focusing on the xylem and phloem. Xylem transports water and minerals from roots to other parts of the plant, while phloem moves sucrose and amino acids between leaves and other plant parts. The concept of translocation is introduced, highlighting the dynamic source-sink relationship that changes with seasons. The tutorial concludes with a summary of the roles of xylem and phloem in plant growth and support.

Why is lignin important in the structure of the Xylem?

What role do companion cells play in the Phloem?

How do the roles of sources and sinks change throughout the seasons?