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.

What is the primary role of specialized transport systems in plants?

• To produce food for the plant

• To protect the plant from pests

• To store energy for later use

• To move substances between cells

Which direction does the Xylem transport water and mineral ions?

• From the leaves to the roots

• In both directions

• From the roots to other parts of the plant

• From the flowers to the leaves

What substance strengthens the walls of Xylem tubes?

• Chlorophyll

• Cellulose

• Starch

• Lignin

What is the main function of the Phloem in plants?

• To translocate sucrose and amino acids

• To provide structural support

• To absorb sunlight for photosynthesis

• To transport water and minerals

In the process of translocation, what are 'sources'?

• Places where sucrose and amino acids are used

• Places where sucrose and amino acids are produced or released

• Parts of the plant that store water

• Regions where photosynthesis does not occur

During winter, what role do the roots play in the plant's transport system?

• They stop functioning until spring

• They act as a source for sugars and amino acids

• They become the main site for photosynthesis

• They store excess water

What are the two specialized transport tissues in plants?

• Veins and Arteries

• Xylem and Phloem

• Roots and Leaves

• Stems and Flowers