What is the primary function of leaves in plants?

The primary function of leaves in plants is indeed photosynthesis and transpiration. During photosynthesis, leaves capture sunlight and use it to convert carbon dioxide from the air and water from the soil into glucose and oxygen. This process is essential for the plant's growth and energy production, making leaves critical for the overall health and functioning of the plant.

In addition to photosynthesis, leaves also play a vital role in transpiration, which is the process of water vapor loss from the plant into the atmosphere through small openings called stomata. This not only helps regulate water balance within the plant but also aids in nutrient uptake from the soil, as the loss of water creates a vacuum that pulls water and nutrients up from the roots.

While leaves can contribute to other plant functions like reproduction and storage, their primary roles are firmly centered around photosynthesis and transpiration, making them indispensable for a plant's survival and growth.