Plant Vascular Tissues (VCE SSCE Biology): Flashcards
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Xylem transport function
Xylem transport function
Water & minerals upward from roots
Phloem transport function
Phloem transport function
Sugars & nutrients in both directions
Transpiration
Transpiration
Water movement up xylem & evaporation through stomata
Guard cells role
Guard cells role
Regulate stomata opening/closing
Casparian strip role
Casparian strip role
Forces selective entry of substances into xylem
Root hair cells function
Root hair cells function
Increase surface area for water & nutrient uptake
Cohesion in xylem
Cohesion in xylem
Water molecules stick together, pulled upward as unit
Translocation
Translocation
Nutrient movement from source to sink via phloem
Source (in translocation)
Source (in translocation)
Tissue where substances are produced or enter
Water used in photosynthesis %
Water used in photosynthesis %
1%