Final answer:
Gap junctions are lined with plasma membrane and contain a central tubule that connects the endoplasmic reticulum of two cells. They allow for direct communication between adjacent cells.
Step-by-step explanation:
The type of junction that is lined with plasma membrane and contains a central tubule connecting the endoplasmic reticulum of two cells is called gap junctions.
Gap junctions are found in animal cells and facilitate direct communication between adjacent cells. They allow for the passage of small molecules and ions between cells, aiding in cell signaling and coordination.
For example, in cardiac muscle cells, gap junctions enable the rapid transmission of electrical signals, allowing the coordinated contraction of the heart.