Unformatted text preview: spiration Transpiration plants loses lots of water that can be said a negative
loss. photosynthesis uses water, but loses very minor.
– Supplies water for photosynthesis (minor)
– Transports minerals from the soil to all parts of
– Cools leaf surfaces 3-5°C by evaporative cooling
minerals are acclimated into the root. they go up the xylem into the leafs. • Poikilotherm = an organism whose internal
temperature varies along with that of the ambient
it can cool the plant. by transpiration. – Maintains the plant's shape and structure by
keeping cells turgid (leaves>woody stems)
the turgor pressure within the cell is the structure of the plant, so when they lose turgor they lose their shape, hence wilt. Transpiration Transpiration
transpiration gets to the leaf by
cohesion hypothesis. Transpiration water enters the leaf from the xylem and exits from the stomata and that is all we know as of the path of the leaf. we dont really...
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- Winter '08