Match each plant transport phenomenon or anatomical pathway listed on the left with its corresponding physiological mechanism or driving force on the right.
- GuttationPositive hydrostatic root pressure exudation through hydathodes
- Translocation of sucrosePressure-flow driven by hydrostatic pressure differences between source and sink
- Transpiration pullNegative tension generated by evaporation at mesophyll leaf surfaces
- Water movement across the endodermisMandatory symplastic routing forced by suberized Casparian strips
Answer
Guttation corresponds to positive hydrostatic root pressure exudation through hydathodes. Translocation of sucrose corresponds to pressure-flow driven by hydrostatic pressure differences between source and sink. Transpiration pull corresponds to negative tension generated by evaporation at mesophyll leaf surfaces. Water movement across the endodermis corresponds to mandatory symplastic routing forced by suberized Casparian strips.
Each transport phenomenon matches its exact physiological driver: guttation relies on positive root pressure through hydathodes; sucrose translocation follows the pressure-flow model in phloem; transpiration pull is driven by tension from mesophyll evaporation; and endodermal passage requires symplastic entry due to Casparian strips.
Step-by-Step Solution
Key Concept
Mechanisms and pathways of water and solute transport in vascular plants