Plant Vascular Tissue (Leaving Cert Biology): Flashcards
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Function of plant vascular tissue
Function of plant vascular tissue
Transports water, minerals, and food throughout plant
Two types of vascular tissue
Two types of vascular tissue
Xylem and phloem
Vascular bundles
Vascular bundles
Structures containing xylem & phloem together
What xylem transports
What xylem transports
Water and mineral salts
Xylem cells when mature
Xylem cells when mature
Dead
Two main xylem cell types
Two main xylem cell types
Vessels and tracheids
Lignin
Lignin
Tough, waterproof substance in xylem walls
What phloem transports
What phloem transports
Sugars (products of photosynthesis)
Phloem tissue condition
Phloem tissue condition
Living
Main phloem components
Main phloem components
Sieve tube elements & companion cells
Sieve plates
Sieve plates
Perforated end walls allowing material flow in phloem
Companion cell function
Companion cell function
Provide metabolic support to sieve tubes
Translocation
Translocation
Transport of food in phloem (up or down as needed)
Lignin in phloem
Lignin in phloem
Absent (phloem lacks lignin)
Xylem transport direction
Xylem transport direction
Upward from roots to leaves