Transpiration mainly occurs in which part of the plant?

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

Answer: (B)

Transpiration primarily occurs in the leaves of a plant. This process involves the evaporation of water from the plant's surface, specifically through tiny openings called stomata. Leaves have a large surface area, which allows for efficient water loss and gas exchange, playing a critical role in the plant's ability to absorb nutrients and maintain hydration.

While roots, stems, and flowers also play important roles in a plant's overall function, they are not the main sites for transpiration. Roots primarily facilitate the absorption of water and nutrients from the soil. Stems support the plant and transport water and nutrients between roots and leaves, but they do not significantly contribute to water loss. Flowers are primarily involved in reproduction and do not play a key role in transpiration compared to the leaves.