What is the primary purpose of cellulose in plants?

Cellulose plays a crucial role in providing structural integrity to plants. It is a complex carbohydrate that forms the primary component of the plant cell wall, giving rigidity and strength. This structural support is vital for maintaining the shape of plant cells and, consequently, the entire plant structure. The layered arrangement of cellulose fibers creates a strong framework that allows plants to withstand various physical stresses, such as wind and rain, which is essential for their ability to grow upright and reach sunlight.

While cellulose is not involved in energy storage, photosynthesis, or respiration directly, its presence enables the plant to develop a sturdy architecture that supports the overall functions of the plant, including photosynthesis and nutrient transport. Thus, the primary purpose of cellulose is indeed to provide structural integrity, making it a critical component for plant health and growth.