What is the significance of cotyledons in a plant's lifecycle?

Cotyledons play a vital role in a plant's lifecycle as they are the first leaves that emerge from a seed during germination. These structures are crucial for photosynthesis in the early stages of a plant's growth. The cotyledons contain chlorophyll and are capable of capturing sunlight, thereby enabling the plant to produce energy through photosynthesis before true leaves develop.

Beyond their role in initiating photosynthesis, cotyledons also help provide the seedling with the necessary nutrients stored within them until the plant can establish a more extensive root system and develop true leaves that will take over the photosynthetic function. Their presence is essential for supporting early growth, thus contributing significantly to the plant’s overall development.