Question

Transpiration is a necessary evil. Justify.

Answer 1

Transpiration is considered to be a necessary evil because it leads to loss of water from plants but provides the plant with several advantages as well.

• Creates transpirational pull for transport
• Supplies water for photosynthesis
• Transports minerals from soil to all parts of a plant
• Cools the surface of the leaves (due to the evaporation of water)
• Keeps the cells turgid; hence, maintains their shape