CBSE Class 11-science Biology Transpiration, Root Pressure
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Transpiration and Evaporation
This video explains how plants have a mechanism to overcome the water loss -
Transpiration
This video discusses that rate of transpiration is different for different -
Ascent of Sap
This video explains the role of cohesion and adhesive force in ascent of sa
- distinguish between osmotic pressure and osmotic potential
- Epithem and Water stoma;
- State the significance of root pressure.
- Define root pressure.
- What is guttation?
- State the rate of the upward flow of water in the xylem of plants.
- What causes the stomata to open or close?
- Name the system in plants which maximises the availability of CO2 and minimises water loss.
- How does turgidity of guard cells help stomata to open or close?
- State the factors which regulate the opening and closing of stomata.