University of Central Florida (UCF) BOT3015 Principles of Plant Science Practice Exam 1

A tiny root compared to a root hair accurately being described as having multiple tissue layers highlights a key distinction in the structural complexity of these plant parts. Unlike root hairs, which are specialized extensions of root epidermal cells and typically consist of a single cell layer, tiny roots are more complex structures made up of various tissue types, including the epidermis, cortex, endodermis, vascular tissue, and sometimes even pith. This multilayered organization allows the tiny roots to perform more complex functions, such as nutrient uptake and transport, anchorage, and sometimes storage.

In contrast, root hairs primarily function to increase surface area for absorption and are not equipped with the same tissue organization that allows for the multifaceted roles that a tiny root can fulfill. This distinction is crucial in understanding how different parts of the plant interact with their environment and perform essential functions.