This card presents evidence for the cohesive-tension theory, including changes in tree diameter related to transpiration and observations when xylem vessels are broken.
Tato karta uvádí důkazy pro teorii kohezní tenze, včetně změn průměru stromů v závislosti na transpiraci a pozorování při porušení cév xylému.
| Front | Evidence for cohesive - tension theory 3.1.3(c) |
|---|---|
| Back | - change in diameter if trees (transpiration/tension in xylem highest at day, tree shrinks, lowest at night, tree expands) - when xylem vessel broken (If cut stem and place just water, air drawn in instead of water leaking out) - if xylem vessel breaks, the pant can’t move water up stem as continuous stream held by cohesive forces broken |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Water transpiration summary delivers minerals cells loss cools
Previous card: Water leaf xylem transpiration roots molecules mesophyll cells
Up to card list: OCR A Biology