Water moves from a plant to the atmosphere through the leaves.
How does a plant regulate the volume of water lost from its leaves?
Describe the pathway and mechanisms by which water is transported from the soil, through the plant, and into the atmosphere.
A student investigated the cumulative volume of water lost from two plants of different species, Species A and Species B, over a 4.0-hour period. Both plants were kept together under the same environmental conditions. At 2.5 hours, both plants were moved to a different environment.
Figure 1 shows the student's results.
Suggest one anatomical or physiological reason why Species A has a higher rate of water loss than Species B during the first 2.5 hours of the investigation.
Calculate the rate of water loss per hour for Species B between 2.5 hours and 4.0 hours. Give your answer to 2 significant figures.
State two changes to the environmental conditions at 2.5 hours that could explain the sudden increase in the rate of water loss in both species.