KA2.5 - Plant Transport Systems Flashcards
What are the three main organs found in plants?
Roots, stems and leaves
List the structures found in the leaf structure (try picture it in your head)
- Upper epidermis
- palisade mesophyll
- spongy mesophyll
- vein (consisting of xylem and phloem)
- lower epidermis
- guard cells and stomata
Water and minerals enter the plant through … and are transported in dead … vessels.
Root hair cells … xylem vessels.
Water and minerals enter the plant through root hair cells and are transported in dead xylem vessels.
Xylem found in plants are hollow tubes held open by rings of …
Lignin.
Similar to the cartilage in your throat these hold the xylem tubes open.
State the structure that transports sugar throughout the plant?
Phloem.
A plant phloem consists of a phloem tube and … cells.
Companion cells.
In the plant water is needed for transporting materials and …
Photosynthesis.
Transpiration in plants is the movement of …
Water.
Transpiration is the process by which water moves from the soil to the leaves.
Describe the process of transpiration through the plant?
Root hair cells -> Xylem -> mesophyll cells -> diffuses out the stomata
State the factors which impact transpiration?
Wind speed, humidity, temperature and surface area
A … wind speed, temperature and surface area will all increase the rate of transpiration?
High.
They all speed up the loss of water from the plant.
