Question

What is transpiration? Give the importance of transpiration. (5 Marks)

Answer 1

Transpiration:
Transpiration is the evaporation of water from the aerial parts of the plant especially through stomata in leaves. (1.5 Marks)
Significance of Transpiration:
• Creates transpirational pull for transport of water. (0.5 Marks)
• Supplies water for photosynthesis. (0.5 Marks)
• Transports minerals from soil to all parts of the plant. (0.5 Marks)
• Cools the surface of the leaves by evaporation. (0.5 Marks)
• Keeps the cells turgid; hence, maintains their shape. (0.5 Marks)
Transpiration
(1 Mark)