Question

The primary function of each of the following is for adhesion of a cell to another cell or the extracellular matrix except

A) desmosomes.
B) hemidesmosomes.
C) plaques.
D) connexins.
E) cadherins.

Answer 1

Desmosomes, hemidesmosomes, and cadherins are all involved in cell adhesion, while connexins and plaques have different functions.

Step-by-step explanation:

The primary function of each of the following is for adhesion of a cell to another cell or the extracellular matrix except:

1. Desmosomes
2. Hemidesmosomes
3. Plaques
4. Connexins
5. Cadherins

Desmosomes, hemidesmosomes, and cadherins are all involved in cell adhesion, while connexins are associated with gap junctions that enable chemical communication between cells. Plaques are not a specific type of cell adhesion structure, but rather play a role in strengthening intercellular attachments. Gap junctions made by connexins let ions and small molecules pass through, facilitating rapid and synchronized responses in a tissue. Hence, the correct answer to which does not primarily function for adhesion is D) connexins.