The following questions refer to the figure above illustrating various types of cell junctions.
-The cell junction labeled "B" in the figure
A) prevents movement of materials between cells.
B) allows passage of a signal to contract heart muscles.
C) allows the free passage of materials between cells.
D) is found mostly in stomach tissue.
E) is found in most tissues except heart muscle.

Question

The following questions refer to the figure above illustrating various types of cell junctions.
-The cell junction labeled "B" in the figure
A) prevents movement of materials between cells. 
B) allows passage of a signal to contract heart muscles. 
C) allows the free passage of materials between cells. 
D) is found mostly in stomach tissue. 
E) is found in most tissues except heart muscle.

Quizplus · Accepted Answer

The cell junction labeled "B" is likely a gap junction, which allows the passage of ions and small molecules between cells, facilitating the transmission of signals such as those needed for heart muscle contraction.

The Following Questions Refer to the Figure Above Illustrating Various