Plant Vascular Tissue (Leaving Cert Biology): Flashcards
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14 cards from this deck
Name the two types of vascular tissue in plants
Name the two types of vascular tissue in plants
Xylem and phloem
Main function of xylem
Main function of xylem
Transports water & mineral salts from roots upward
Two main cell types in xylem
Two main cell types in xylem
Vessels and tracheids
State of xylem cells when mature
State of xylem cells when mature
Dead
Substance that strengthens xylem cell walls
Substance that strengthens xylem cell walls
Lignin
Structure of xylem vessels
Structure of xylem vessels
Continuous tubes - end walls break down completely
How does water move between tracheids?
How does water move between tracheids?
Through small openings called pits
Main function of phloem
Main function of phloem
Transports sugars from leaves to other plant parts
State of phloem tissue
State of phloem tissue
Living tissue
Two main components of phloem
Two main components of phloem
Sieve tube elements and companion cells
Name for perforated end walls in phloem
Name for perforated end walls in phloem
Sieve plates
Role of companion cells in phloem
Role of companion cells in phloem
Provide metabolic support to sieve tubes
Term for food transport in phloem
Term for food transport in phloem
Translocation
What does xylem transport vs phloem?
What does xylem transport vs phloem?
Xylem: water & minerals; Phloem: sugars/food