STEM, ROOTS & SAP SIMULATION
▸ Building the tree: roots–stem–canopy…
▸ Wiring xylem (water up) & phloem (sugar down)
▸ Starting transpiration at the leaves
▸ Building the stem cross-section & annual rings
▸ Calibrating the cohesion-tension force…
▸ Ready — Online. ✅
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⌂ The Living World
Simulation room
Stem, Roots & Sap
Sap Transport
Online
xylem · phloem
Sap flow
🌱
Xylem & Phloem
water up ↑ · sugar down ↓
Mode
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Light
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Water (roots)
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Xylem flow
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Phloem flow
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Transpiration
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Notes
Transpiration at the leaves creates the pull that draws the water column up (cohesion-tension); the phloem carries sugar down to feed the roots.
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🔄 Reset
🪵 Stem cross-section
Adjust sun/humidity/water in the right column · try girdling & drought · click a structure to see the annual rings
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Sap flow over time
xylem
phloem