Which term means water loss from plants through the leaves?

Which term means water loss from plants through the leaves?

• A. Transpiration
• B. Surface stores
• C. Temperature range
• D. Transport

Answer: (A)

Transpiration is the process by which water is lost from a plant as water vapor, mainly from the surfaces of leaves through the stomata. This vapor loss is driven by the difference in vapor pressure between the leaf interior and the surrounding air and is regulated by stomatal opening, which responds to light, humidity, temperature, wind, and soil moisture. This term precisely describes water leaving the plant via leaves, tying into how water moves from roots up through the xylem to replace what's lost. The other terms don’t fit: surface stores refer to water on the land’s surface, temperature range describes heat conditions, and transport refers to movement of substances within the plant rather than water loss to the atmosphere.

Transpiration is the process by which water is lost from a plant as water vapor, mainly from the surfaces of leaves through the stomata. This vapor loss is driven by the difference in vapor pressure between the leaf interior and the surrounding air and is regulated by stomatal opening, which responds to light, humidity, temperature, wind, and soil moisture. This term precisely describes water leaving the plant via leaves, tying into how water moves from roots up through the xylem to replace what's lost. The other terms don’t fit: surface stores refer to water on the land’s surface, temperature range describes heat conditions, and transport refers to movement of substances within the plant rather than water loss to the atmosphere.