Continuation

Created by

Glenna

Cards (20)

What is the main topic discussed in the video?
Transport in plants
What is the specialized tissue in plants aimed at transporting substances?
Vascular tissue
What is the name of the tube that carries water in plants?
Xylem
In which direction does the xylem carry water?
Upward from roots to shoots
What two forces help the movement of water in the xylem?
Cohesion and adhesion
What is cohesion in the context of water transport in plants?
Water's attraction to other water molecules
What is adhesion in the context of water transport in plants?
Water's attraction to the sides of the xylem
How does transpiration contribute to water movement in plants?
It creates a pulling force that draws water upward
What are stomata?
Small openings on leaves for gas exchange
What structural feature of the xylem helps maintain a continuous water column?
It is made of dead hollow cells
What role does lignin play in the xylem?
It provides structural support and prevents collapse
What is the shape of the xylem in the center of the root? 
shaped
What is the function of the phloem in plants?
To transport sugars and organic molecules
What is the outer layer of the plant stem called?
Epidermis
What is the function of the cortex in plant stems?
It supports vascular bundles and is involved in photosynthesis
What is the pith in a plant stem?
The central part that provides bulk
How do root hairs assist in water absorption?
They increase the surface area for absorption
What are the main components of the vascular system in plants?
Xylem: transports water
Phloem: transports sugars and organic molecules
How do the arrangements of xylem and phloem differ in stems and roots?
In stems: Xylem is towards the center, phloem is towards the outside.
In roots: Xylem is in the center in an X shape, phloem is near the xylem but closer to the periphery.
What adaptations do xylem cells have for water transport?
Made of dead hollow cells
Lignin for structural support
Pits for water movement between xylem and phloem