The difference between tight junctions, desmosomes, and gap junctions is that
A) desmosomes and gap junctions contain keratin, whereas tight junctions have collagen.
B) gap junctions and tight junctions have specialized protein channels called connexons, whereas desmosomes do not.
C) tight junctions and desmosomes have mechanical roles, whereas gap junctions facilitate communication between cells.
D) desmosomes and gap junctions are found in epithelial tissue, whereas tight junctions are found in nerve cells.
E) they all have different functions, even though their structure is the same.

Question

Quizplus · Accepted Answer

Tight junctions and desmosomes both have roles in cell adhesion and maintaining tissue integrity, whereas gap junctions facilitate communication between cells by allowing small molecules to pass between them through specialized protein channels called connexons. The other options are incorrect as they either describe incorrect components of these junction types or are too generalizing.

The Difference Between Tight Junctions, Desmosomes, and Gap Junctions Is