Question:
Why transpiration is called ‘a necessary evil’?
Answer:
(1) Water loss in the form of water vapor is called
transpiration
(2) About Stomata are the source of 90-93% of transpiration, small
A hole is located in the epidermis of a leaf.
(3) The stoma must remain open for this process and only then
Gaseous exchange occurs by diffusion.
(4) Photosynthesis and respiration both require gas exchange.
Clogged stomata affect plant productivity.
(5) Process is a necessary evil because water is important
Because the plant is destroyed in this process.
(6) At the same time it helps in water and its absorption
Transcription is therefore unavoidable.
(7) Hence, Curtis calls it a necessary evil.
