What process describes plants releasing water vapor from their leaves?

What process describes plants releasing water vapor from their leaves?

• A. Transpiration
• B. Evaporation
• C. Condensation
• D. Diffusion

Answer: (A)

Transpiration is the plant-specific loss of water vapor through the leaves. Water travels from the roots up the xylem to the leaves, where it evaporates from the moist cells inside the leaf and escapes to the air through tiny openings called stomata. This process not only releases water vapor but also helps pull more water up from the roots as water evaporates, creating a continuous flow. In contrast, evaporation is a general term for liquid water turning into vapor from any surface, condensation is vapor turning into liquid, and diffusion is the spread of molecules from high to low concentration without specifying a plant context.

Transpiration is the plant-specific loss of water vapor through the leaves. Water travels from the roots up the xylem to the leaves, where it evaporates from the moist cells inside the leaf and escapes to the air through tiny openings called stomata. This process not only releases water vapor but also helps pull more water up from the roots as water evaporates, creating a continuous flow. In contrast, evaporation is a general term for liquid water turning into vapor from any surface, condensation is vapor turning into liquid, and diffusion is the spread of molecules from high to low concentration without specifying a plant context.