Plant Transport Systems and Tissues

The video explains the transport system in plants, focusing on xylem and phloem. Xylem transports water and minerals from roots to other parts of the plant, while phloem moves sucrose and amino acids from leaves to other areas. The video compares the structures and functions of xylem and phloem, highlighting their roles in plant support and nutrient distribution. It also discusses how these tissues are arranged in different plant parts, such as leaves, stems, and roots, to provide mechanical support and resist environmental forces.

What is the primary function of the transport system in plants?

• To circulate blood

• To generate energy

• To move water and minerals

• To produce seeds

Which tissue is responsible for transporting water and minerals in plants?

• Cortex

• Phloem

• Xylem

• Epidermis

What are the regions called where sugar is produced in plants?

• Nodes

• Internodes

• Sources

• Sinks

Which part of the plant is considered a sink?

• Leaf

• Root

• Flower

• Stem

Which of the following is a characteristic of xylem vessels?

• Contains companion cells

• Living cells with cytoplasm

• Thick walls with lignin

• Perforated end walls

What is the main structural difference between xylem and phloem?

• Xylem transports sugars, phloem transports water

• Xylem has thick walls with lignin, phloem has thin walls

• Xylem is found in roots, phloem is found in leaves

• Xylem has living cells, phloem has dead cells

What material is absent in the walls of phloem tissue?

• Cellulose

• Lignin

• Cytoplasm

• Nucleus

How are phloem cells supported and kept alive?

• By xylem

• By companion cells

• By pits

• By lignin

In which part of the plant are xylem and phloem arranged in bundles near the edge?

• Root

• Stem

• Leaf

• Flower

What is the purpose of the arrangement of xylem and phloem in the root?

• To resist bending forces

• To withstand stretching forces

• To store nutrients

• To support photosynthesis