| Aquaporins mediate the bidirectional passage of water over membranes and are present in tonoplasts and in plasma membranes of plant cells. |
| A dedicated wavelength pair for bidirectional transmission serves each node. |
| The types of communication from one subsystem to another may be unidirectional or bidirectional. |
| Error prevention features cannot be implemented easily without bidirectional connectivity. |
| The link slave devices and the link controller include protocol logic for communication according to a bidirectional protocol. |
| The integration of the two is quite good with regard to overall function and bidirectional data associativity. |
