Question

match the cell membrane structure to its description: desmosomes. adjacent cells joined by a line of membrane proteins that form an impermeable junction; mechanical couplings scattered like rivets along the sides of adjacent cells to prevent their separation; none of the listed responses is correct; adjacent cells held together by connexon proteins that form cylinders allowing ion flow between the cells cytoplasm; i dont know yet

Explanation:

To solve this, we analyze each option:

• The first option describes tight junctions (form impermeable junctions).
• Desmosomes are mechanical couplings (like rivets) that prevent cell separation, matching the second option.
• The third option is incorrect as we identified the correct match.
• The fourth option describes gap junctions (connexon proteins for ion flow).

Answer:

B. Mechanical couplings scattered like rivets along the sides of adjacent cells to prevent their separation