There is more tension in xylem at higher light intensities because more stomata open, increasing water evaporation from mesophyll cell walls and the water potential gradient, leading to more tension due to water cohesion and adhesion.
C'è più tensione nello xilema a intensità luminose più elevate perché più stomi si aprono, aumentando l'evaporazione dell'acqua dalle pareti delle cellule mesofilliane e il gradiente di potenziale idrico, portando a una maggiore tensione dovuta alla coesione e all'adesione dell'acqua.
| Front | Why is their more tension in the xylem at higher light intensities? |
|---|---|
| Back | - more stomata open - more water evaporates from mesophyll cell walls using heat from Sun - larger wp gradient - more water loss by evaporation - more water drawn up xylem by cohesion - water molecules stick to xylem walls by adhesion - so more tension |
Tags: exam, plant_transport
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