Why Plants Need Water

Water is one of the most essential factors for the survival of plants. Just like humans and other living beings, plants also need water to perform different functions that are required for their growth and development. In this article, we will explore the reasons why plants need water.

Water Helps in Photosynthesis

The process of photosynthesis is essential for the growth and development of plants. It is the process in which plants use sunlight, carbon dioxide, and water to manufacture glucose and oxygen. Without water, plants cannot perform photosynthesis. The water molecules absorbed by the roots are transported to the leaves where they are used in the process of photosynthesis. So, water is necessary for the production of food for the plant.

Water Helps in Nutrient Absorption

Plants also need nutrients for their growth and development. These nutrients are usually present in the soil. However, the nutrients cannot be absorbed by the plants without the help of water. When water is absorbed by the roots, it dissolves the nutrients in the soil and carries them to other parts of the plant. Without water, the nutrients will be present in the soil but will not be available to the plant, leading to nutrient deficiency and the resultant stunted growth.

Water Helps in Transport

Water is not only used in photosynthesis and nutrient absorption but also plays a crucial role in the transport system of the plant. The water absorbed by the roots is transported through the xylem to the leaves and other parts of the plant. In addition to water, the xylem also carries dissolved nutrients and other compounds that are needed for the growth and development of the plant. The water movement through the xylem is driven by transpiration. The loss of water from the leaves creates a suction force that pulls water from the roots to the leaves. Without water, this transport system will not work, and the plant will not be able to receive the nutrients required for growth.

Water Helps in Cooling

Plants also use water for cooling purposes. During the process of photosynthesis, a lot of heat is generated. If this heat is not dissipated, it can damage the plant. To avoid this, plants transpire water from the leaves, which evaporates and cools the plant. This process is similar to sweating in humans. Without water, the plant will overheat and eventually die.

Conclusion

In conclusion, water is essential for the survival and growth of plants. It helps in photosynthesis, nutrient absorption, transport, and cooling. It is, therefore, important to ensure that plants have access to sufficient water to support these functions. Proper watering is necessary for healthy and thriving plants.