This card explains turgor pressure and its importance for plants, describes root hair cells as exchange surfaces for water uptake, and lists their adaptations for maximizing absorption.
Tato karta vysvětluje turgorový tlak a jeho význam pro rostliny, popisuje buňky kořenových chlupů jako povrchy pro příjem vody a uvádí jejich adaptace pro maximální absorpci.
| Front | Turgor pressure, root hair cells 3.1.3(d) |
|---|---|
| Back | - Hydrostatic pressure resulting from osmosis in plant cells, supporting plant, also drives cell expansion (force enabling roots through concrete) - loss of water keeps plants cool, root hair cells are exchange surfaces where water taken in from soil, root hairs are long, thin extensions from root hair cells - root hair cell adaptions - microscopic (can penetrate between soil particles) - large SA:V - thin surface layer (fast diffusion/osmosis) - WP gradient between water and cell cytoplasm |
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