Explain transpiration and predict how environmental conditions affect its rate.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2024–2026.
Other conditions remaining similar, which pair of changes would lower a leaf’s transpiration rate? A. Warmer air and lower humidity B. More humid air and lower temperature C. Drier air and faster wind D. Higher temperature and a stronger water-vapour gradient
Water affects both plant physiology and the habitats of organisms. (a) Outline benefits to organisms arising from cohesion of water molecules. (b) Outline how environmental conditions influence transpiration. (c) Explain osmosis and its effects on plant cells.…
Which pair of changes would tend to increase transpiration from a well-watered plant with open stomata? A. Lower light availability and higher relative humidity B. Lower air temperature and higher relative humidity C. Higher relative humidity and slower air…
Water properties affect both individual cells and whole plants. (a) Draw and label two interacting water molecules. (b) Outline what happens when animal and plant cells are immersed in pure water. (c) Explain transpiration and the adaptations of xylem vessels…
Unrooted stem cuttings are used to propagate a plant. Which procedure most directly reduces the danger of dehydration before roots develop? A. Remove every stem node so no new tissues can form B. Use only flowering shoots because flowers prevent transpiration…
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