Which of these is false about the piliferous layer of a root? It

Explanation

This question is asking which statement about the piliferous layer of a root is false. The piliferous layer is located in the outermost part of the root and is responsible for absorbing water and nutrients from the soil. Option A states that the piliferous layer has a thin cuticle and this statement is correct. The cuticle is a waxy layer that covers the epidermis of the plant to reduce water loss, but in roots, the cuticle is thin to allow for water absorption. Option B states that the piliferous layer is the outermost layer of the cortex, and this statement is also correct. The cortex is the region of the root between the epidermis and the stele, and the piliferous layer is the outermost layer of the cortex. Option C states that the piliferous layer may bear root hairs, and this statement is correct. Root hairs are extensions of the epidermal cells that increase the surface area of the root for water and nutrient absorption. Option D states that the piliferous layer is replaced by cork in old roots, and this statement is false. The piliferous layer is not replaced by cork in old roots, but rather by other tissues such as the endodermis. Therefore, the false statement about the piliferous layer of a root is Option D