The cuticle in plants serves what main purpose?

The cuticle in plants primarily serves the purpose of preventing water loss. It is a waxy, protective layer that covers the leaves and stems, helping to reduce the rate of evaporation of water. This is especially important for terrestrial plants that need to maintain water balance in their cells to survive, particularly in environments where water is limited. By limiting moisture loss, the cuticle aids in conserving water, which supports the overall health and functionality of the plant.

While the cuticle does not function in nutrient storage, photosynthesis, or anchoring the plant, its role in reducing water loss is crucial for plant survival, especially in various environmental conditions.