Question

Transpiration is defined as:

• A. The loss of water as water vapour from the aerial parts of a plant.
• B. The elimination of water with dissolved minerals.
• C. Release of water by plant into atmosphere
• D. The rise of water upwards along the stem of a plant.

Answer 1

The correct option is A The loss of water as water vapour from the aerial parts of a plant.

• 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.
• The loss of water as water vapour from the roots as well as the leaves of the plant is called transpiration.