Final answer:
Simple cuboidal epithelium is composed of cube-shaped cells arranged in a single layer with round, central nuclei, involved in the secretion and absorption, often seen in kidney tubules and glands.
Step-by-step explanation:
Under a microscope, simple cuboidal epithelium exhibits a single layer of cells that resemble cubes, where the cells’ width is approximately equal to their height. The nucleus of each cube-shaped cell typically appears round and centrally located. This tissue type is notably found in the lining of kidney tubules and ducts within glands, playing a crucial role in the processes of secretion and absorption of molecules.
Thanks to their structure, simple cuboidal epithelial cells are efficient in their function, lining tubules in the mammalian kidney, where they are actively involved in filtering the blood. Their presence in glandular tissues across the body facilitates the preparation and secretion of glandular material, essential for various physiological functions.