Question

The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions:

Define the process.

Answer 1

Transpiration:

1. It is the loss of water as water vapors from the aerial parts of the plant.
2. Transpiration is the phenomenon of the evaporation of water from the plant surface.
3. It is mainly through the stomata (90%).
4. Various environmental factors like temperature, light, wind, humidity and internal factors like the structure of the leaf and root-shoot ratio affect transpiration.