Question

question 17 (1 point)
how do gap junctions differ from desmosomes?
a gap junction bridges the space between cells.
a gap junction requires the use of atp to open and close its channels
a gap junction is a much larger space between cells.
a gap junction can control the passage of materials between cells
a gap junction is a much larger space between cells.

Explanation:

Gap junctions are channels that allow the direct passage of small - molecular - weight substances between cells, enabling communication and coordination. Desmosomes are mainly for cell - to - cell adhesion, providing mechanical strength. Gap junctions can control the passage of materials between cells, which is a key difference. They do not require ATP to open/close channels, and they do not bridge the space in the same way as desmosomes. The space between cells in a gap junction is not larger.

Answer:

D. A gap junction can control the passage of materials between cells