Which of the following experimental protocols would you use
Which of the following experimental protocols would you use to determine whether two cells were joined together by desmosomes?
| At the junction of the two cells, place a drop of liquid and observe whether the liquid passes between the cells. |
| Pull the two cells in opposite directions. |
| Inject dye into one of the cells and observe the spread of the dye. |
Solution
Explanation:Desmosomes are intercellular junctions that provide strong adhesion between cells. Because they also link intracellularly to the intermediate filament cytoskeleton they form the adhesive bonds in a network that gives mechanical strength to tissues. A test involving pulling of cells in opposite directions could confirm the form attachement by desmosomes.
| Pull the two cells in opposite directions. |
