A ‘necessary evil’ as termed by curtis transpiration because:
1. Stomata, small openings in the leaf epidermis, facilitate 90–93% of transpiration, a vital plant process.
2. To enable gaseous exchange through diffusion, stomata must remain open during this essential biological activity.
3. Gaseous exchange is crucial for both respiration and photosynthesis within plants.
4. The productivity of a plant is adversely impacted if stomata remain closed, disrupting the required exchange of gases.
5. Despite its significance, the process of transpiration represents a necessary evil, as it results in the loss of water, a crucial resource for plants.
6. Balancing the benefits and drawbacks of transpiration is essential for understanding its role in sustaining plant life.