Final answer:
The correct option is b. Desmosomes are intermediate fibers that create tight bonds between adjacent cells, allowing fluids to pass through intracellular spaces. They consist of cadherins that link cells together by spanning their cell membranes and connecting to neighboring cells. Intermediate filaments strengthen the intercellular attachments formed by desmosomes.
Step-by-step explanation:
Desmosomes are intermediate fibers that link adjacent cells together. They act like spot welds and create tight bonds between cells, allowing fluids to pass through intracellular spaces.
Desmosomes consist of cadherins, which connect two adjacent cells by spanning their cell membranes and linking to the cadherin molecules of neighboring cells. Intermediate filaments, such as keratin, further strengthen the intercellular attachments created by desmosomes.