Question

Match the cell adhesion or junction on the left with the appropriate choice on the right.

A) junction connecting tonofilaments to collagen filaments
B) anchors cytoskeleton of one cell with that of a neighboring cell
C) type of adherens junction connecting actin filaments to the extracellular matrix
D) dense cluster of intracellular linker proteins connected to cytoskeletal filaments
E) protein subunit of gap junctions
F) continuous attachment zones connecting actin microfilament structures near the apical end of epithelial cells
G) button-like point of strong adhesion between two cells
H) intermediate filaments associated with plaques
I) create a permeability barrier between epithelial cells
J) an adhesive junction that connects an epithelial cell to the basal lamina
K) hollow cylinders associated with gap junctions
L) connects cytoplasms of two cells
M) specialized modifications of the cell membrane in which two cells come together in multicellular organisms

1) adherens junctions
2) desmosome
3) cell junctions
4) connexons
5) plaque
6) tonofilaments
7) hemidesmosome
8) adhesive junction
9) tight junctions
10) connexin
11) gap junction
12) focal adhesion

Answer 1

The matching pairs include: A) Hemidesmosome, B) Adherens Junction, C) Focal Adhesion, D) Plaque, E) Connexin, F) Adherens Junction, G) Desmosome, H) Tonofilaments, I) Tight Junction, J) Hemidesmosome, K) Connexons, L) Gap Junction, and M) Cell Junctions.

Step-by-step explanation:

Here is the correct matching of the cell adhesion or junctions to their description:

• A) Hemidesmosome
• B) Adherens Junction
• C) Focal Adhesion
• D) Plaque
• E) Connexin
• F) Adherens Junction
• G) Desmosome
• H) Tonofilaments
• I) Tight Junction
• J) Hemidesmosome
• K) Connexons
• L) Gap Junction
• M) Cell Junctions

Tight junctions are key in establishing a barrier that controls movement of substances between epithelial cells. Desmosomes, including both spot and belt desmosomes, utilize cadherins and are crucial for tissue structural integrity. Gap junctions allow for chemical communication between cells through connexons composed of connexin proteins, facilitating synchronized cellular responses.