Question

What is Plasmodesmata ?

Answer 1

its a narrow thread of cytoplasm that passes through the cell walls of adjacent plant cells for communication

Answer 2

Plasmodesmata are very thin threads made up of cytoplasm that are connected through cells as thin channels and enables the communication between them.  

Explanation:  

• In plant cells as well as some algal cells, there are present thin strands of cytoplasm that act as channels and pass through cells and make a network of cytoplasm.
• It is through this communication that ensures between the cells and transport of chemicals occur.
• Molecules as well as other substances move to and fro using these plasmodesmata and this acts as the main channel through which plant cells secrete unwanted objects from them.