Which part of the plant is mainly responsible for water absorption?

• A. Leaves
• B. Stems
• C. Roots
• D. Flowers

Answer: (C)

The roots of a plant are primarily responsible for water absorption. They consist of specialized structures that extend into the soil, increasing the surface area for the uptake of water and minerals. The root hairs, which are tiny extensions of the root cells, play a significant role in this process by penetrating the soil and facilitating the absorption of water through osmosis.

Roots also anchor the plant in place, providing stability, and serve as a storage site for nutrients and energy in the form of starch. While leaves do engage in transpiration, which helps in the movement of water within the plant, the actual absorption occurs primarily through the root system. Stems function mainly in support and transporting nutrients and water between roots and leaves, while flowers are involved in reproduction. Thus, the roots are essential for the plant's water and nutrient supply, making them the correct choice for this question.