Question

What is transpiration

Answer 1

Answer:

(of a plant or leaf) the exhalation of water vapour through the stomata.

"plants lose more than 90 per cent of their water through transpiration"

Answer 2

• Transpiration happens through the stomatal openings and may be regarded of as a required "cost" connected with the opening of the stomata to enable carbon dioxide gas from the air to diffuse into the plant for photosynthesis.
• Transpiration also cools plants, adjusts cell osmotic pressure, and allows mineral nutrients and water to travel from roots to shoots in a mass flow.
• The hydraulic conductivity of the soil and the size of the pressure gradient through the soil are both important elements in determining the rate of water flow from the soil to the roots.
• The rate of bulk water movement from the roots to the stomatal pores in the leaves via the xylem is affected by both of these variables.

• Water movement through a plant and evaporation from aerial portions including leaves, stems, and flowers is referred to as transpiration.
• Plants require water, yet only a tiny portion of the water absorbed by the roots is used for growth and metabolism.
• Transpiration and guttation account for the remaining 97–99.5 percent.
• Stomata (singular "stoma") are pores on the undersides of leaves that are more abundant in most plants. Guard cells and their stomatal auxiliary cells (together referred to as the stomatal complex) surround the stomata, which open and seal the pore.