What is transpiration short note?

Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism.

What is the process of transpiration in plants?

Transpiration is a process that involves loss of water vapour through the stomata of plants. The loss of water vapour from the plant cools the plant down when the weather is very hot, and water from the stem and roots moves upwards or is ‘pulled’ into the leaves.

What is the importance of transpiration in plants for Class 7?

Solution 7: Transpiration serves a very important function in plants. It is the loss of water through stomata. Transpiration creates the transpiration pull, which is responsible for the rise of water to great heights in tall plants and other trees.

What is the importance of transpiration in plants Class 8?

Cools the surface of the leaves. Helps in growth and development. It controls the temperature of the plants. Allows the movement of minerals from the soil to different parts of the plant.

What is transpiration write its function?

Transpiration : The evaporation of excess water from the stomata present in leaves of plants is called transpiration. Two functions : i It is important for upward movement of water in plants. ii It helps in regulating temperature of plant.

What is transpiration write its importance?

The loss of water from the aerial parts of the plant in the form of vapour is called transpiration. It helps in absorption and upward movement of water and minerals dissolved in it from roots to the leaves. Transpiration pull is especially important at night. It also helps in temperature regulation.

What are the 6 factors affecting transpiration?

The environmental factors affecting the rate of transpiration are:

  • Light,
  • Humidity,
  • Temperature,
  • Atmospheric pressure,
  • Wind speed or velocity.

What is transpiration write role of transpiration?

What are the 3 functions of transpiration?


  • transporting mineral ions.
  • providing water to keep cells turgid in order to support the plant.
  • providing water to leaf cells for photosynthesis.
  • keeping the leaves cool by evaporation.

What is transpiration Class 7 short?

Answer: Transpiration is the evaporation of excess water from the surface of a leaf, through the stomata. Transpiration produces a cooling effect and thus saves the plant from the hot sun.

What are the five importance of transpiration?

(i) It enables plants to absorb water and mineral salts from the soil. (ii) It facilitates the movement of soil water. (iii) The evaporation of water due to transpiration from the plants cools the plants. (iv) It helps to remove excess water from the plants.

How does wind increase transpiration?

Wind and air movement: Increased movement of the air around a plant will result in a higher transpiration rate. Wind will move the air around, with the result that the more saturated air close to the leaf is replaced by drier air.

How does transpiration occur in plants?

Transpiration is the evaporation of water at the surfaces of the mesophyll cells, followed by loss of water vapour from plant leaves, through the stomata. Water in the leaf cells forms a thin layer on their surface.

What is stomatal transpiration in plants?

Stomatal Transpiration It is the evaporation of water from the stomata of the plants. Most of the water from the plants is transpired this way. The water near the surface of the leaves changes into vapour and evaporates when the stomata are open.

What are the notes on transpiration?

Notes on Transpiration:- 1. Meaning of Transpiration 2. Factors Affecting Transpiration 3. Factors Controlling 4. Significance. If a bell jar is placed on a pot, a film of moisture appears on its dry inner surface indicating loss of water as vapours which condense on the cool inner surface of the bell jar.

What is cuticular transpiration in plants?

Cuticular Transpiration It is the evaporation of water from the cuticle of the plants. The cuticle is a waxy covering on the surface of the leaves of the plants. About 5-10% of the water from the leaves is lost through cuticular transpiration.