Question 1:
State the factors involved in the water and mineral salts pathway from soil to leaves.
Answer:
Root pressure, capillary action (adhesion and cohesion forces) and transpirational pull.
State the factors involved in the water and mineral salts pathway from soil to leaves.
Answer:
Root pressure, capillary action (adhesion and cohesion forces) and transpirational pull.
Question 2:
Give the definition of guttation and state its importance.
Answer:
Guttation is a secretion of water droplets through a special structure at the end of leaf veins without involving the stomata caused by a high root pressure. Guttation maintains an effective root pressure. Hence, more water and mineral salts is absorbed by the root.
Give the definition of guttation and state its importance.
Answer:
Guttation is a secretion of water droplets through a special structure at the end of leaf veins without involving the stomata caused by a high root pressure. Guttation maintains an effective root pressure. Hence, more water and mineral salts is absorbed by the root.
Question 3:
What is the difference between guttation and transpiration?
Answer:
• Guttation happens at night and early morning whereas transpiration happens on hot and windy days.
• Guttation happens in herbaceous plants whereas transpiration happens in all plants.
• Guttation releases water droplets whereas transpiration released water vapour.
• Guttation happens through a special structure at the end of the leaf veins whereas transpiration happens through stomata.
• Guttation happens when root pressure is high whereas transpiration is controlled by the stomatal opening and closing.
What is the difference between guttation and transpiration?
Answer:
• Guttation happens at night and early morning whereas transpiration happens on hot and windy days.
• Guttation happens in herbaceous plants whereas transpiration happens in all plants.
• Guttation releases water droplets whereas transpiration released water vapour.
• Guttation happens through a special structure at the end of the leaf veins whereas transpiration happens through stomata.
• Guttation happens when root pressure is high whereas transpiration is controlled by the stomatal opening and closing.
Question 4:
On a hot and windy condition, water absorption by the roots and water transport in the xylem becomes faster.
Do you agree with the statement? Justify.
Answer:
Agree. The conditions stated causes an increase in evaporation of water through transpiration, thus leading to an increase in transpiration pull.
On a hot and windy condition, water absorption by the roots and water transport in the xylem becomes faster.
Do you agree with the statement? Justify.
Answer:
Agree. The conditions stated causes an increase in evaporation of water through transpiration, thus leading to an increase in transpiration pull.