Support and Transport Systems in Plants (Grade 10 NSC Matric Life Sciences): Flashcards
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Root hair cells function
Root hair cells function
Absorb water & minerals from soil
Root hair cells absorptive capacity increase
Root hair cells absorptive capacity increase
Up to 40 times compared to roots without them
Osmosis
Osmosis
Water moves from high to low concentration across membrane
Symplastic pathway
Symplastic pathway
Water moves through cells/cytoplasm in cortex
Apoplastic pathway
Apoplastic pathway
Water moves in/between cell walls; faster route
Endodermis function
Endodermis function
Checkpoint controlling what enters xylem vessels
Xylem function in roots
Xylem function in roots
Transport water upward to all parts of plant
Root pressure
Root pressure
Pressure pushing water up when soil moisture is high
Capillarity
Capillarity
Ability of liquids to flow through narrow spaces
Transpiration pull
Transpiration pull
Strongest force moving water; pulling from leaf evaporation