What role do plasmodesmata play in plant cells? see section 11.2 ( page 239) ?

Plasmodesma are tiny highway like channels in plant cell walls that allow the cells to transport and communicate between themselves. The plasmodesma allows the apoplastic and symplastic channels of one cell to connect to another individual cell.

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.