Question
“Transpiration is a necessary evil.” Comment.
Solution
Transpiration is the process by which land plants lose water. Plants absorb large amounts of water and most of it is transpired by the plant. For example, a maize plant loses about 3–4 litres of water per day and a maize field spread over one acre will lose about 85,000 litres of water during its growing reason. Although, plants lose such a huge amount of water by the process of transpiration even then transpiration helps the plant in many ways. It provides a system of transport of water and minerals, cools the plants thus maintaining proper temperature for other physiological activities. Transpiration helps to transport water to great heights as it creates a strong suction pressure. It also helps in ripening of fruits.
