The loss of excess water by diffusion through the stomata of leaves of a plant into the atmosphere is called transpiration. Although a small amount of water may be transpired through the other parts of the plant, 90% of the water diffuses out through the leaves

It helps it to transport water and minerals towards the leaves from the roots in the upward direction a

Transportation in plants is the process by which plants move water, nutrients, and other substances from one part of the plant to another. This process is essential for the survival of the plant and is carried out through two primary mechanisms: transpiration and translocation.

Transpiration

Transpiration is the process by which water is lost from the leaves of the plant through small pores called stomata. This loss of water creates a negative pressure within the plant, which pulls water and nutrients up from the roots and into the rest of the plant. Transpiration is responsible for the majority of water movement in plants and is driven by a combination of factors, including temperature, humidity, and wind.

Translocation

Translocation is the process by which nutrients and other substances are moved throughout the plant. This process is carried out through the phloem, which is a specialized tissue that transports sugars, amino acids, and other substances from the leaves to the rest of the plant. The movement of substances through the phloem is driven by a process called pressure-flow, which involves the active transport of substances from areas of high concentration to areas of low concentration.

Overall, transportation in plants is a complex process that involves both transpiration and translocation. By effectively moving water, nutrients, and other substances throughout the plant, plants are able to grow, thrive, and survive in their environment.