What is the effect of transpiration on the surface tension of the water, i.e.doe

Question

What is the effect of transpiration on the surface tension of the water, i.e.does it increase it or decrease it? How does changing surface tension affect water molecules below the surface? How do you think this affects the water molecules in the xylem cells that touch these spongy mesophyll cell walls, or water in xylem cells farther back in the leaf, or stem? What is the effect of transpiration on the surface tension of the water, i.e.does it increase it or decrease it? How does changing surface tension affect water molecules below the surface? How do you think this affects the water molecules in the xylem cells that touch these spongy mesophyll cell walls, or water in xylem cells farther back in the leaf, or stem?

Explanation / Answer

transpiration means water evaporation from the leaves. As evaporation of water occurs through the stomata or exposed part, negative pressure (known as tension ) is created in the leaves and xylem tissues.

pulling force exerted by this negative pressure on the water in the plant’s xylem that helps to draw water upward from the soil.

water loss during transpiration draws water from leaves. in mesophyll cells water enter from the xylem via osmosis. the water molecule that leave the xylem cell pull another water molecule creates transpiration pull due to cohesive force of water. this pulls create a tension and water drawn upward due to adhesive force between xylem tissue and water molecule. this procees is known as capillarity. also root pressure contribute to the upward movement of water. this is explained under cohesion- tension theory.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.