You observe a tissue under a microscope. there appears to be a lumen on one side of the tissue. lining this lumen, the cells seem to have long, fingerlike projections. beneath the projections, the cells seem to have the shape of shoeboxes and are packed tightly together. what type of tissue are you looking at? you observe a tissue under a microscope. there appears to be a lumen on one side of the tissue. lining this lumen, the cells seem to have long, fingerlike projections. beneath the projections, the cells seem to have the shape of shoeboxes and are packed tightly together. what type of tissue are you looking at? transitional epithelia stratified squamous epithelia simple cuboidal epithelia simple columnar epithelia

You are looking at a simple columnar epithelial tissue.

Explanation:

Epithelium morphology correlates with their function. Those who intervene in secretion or absorption processes are simple epitheliums. Cells high frequently reflect their secretory or absorptive activity degree. Epitheliums that transport substances are characterized for presenting cubic or columnar cells.

Simple columnar epithelia is a single layered columnar epithelium formed by cells that are taller than wider, getting a shoebox shape. These cells might present fingerlike projections in their apical surface, lining the lumen. These modifications are known as microvilli.

The columnar epithelium lines the interior surface of hollow or tubular organs such as the digestive tract and the uterus.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.