What chemical substance is deposited in the secondary wall of sclerenchyma?

Describe the structure of a nerve cell.

Which plant tissue provides both mechanical strength as well as flexibility?

Name the plant tissue which show the following features?

(a) made up of living cells showing thickening; provide mechanical support to the plant.

(b) made up of dead cells showing thickening; provide mechanical support to the plant; are made of one type of cells.

(c) made up of living cells containing green coloured chloroplasts, possesses intercellular space.

What is skeletal connective tissue? Give its functions.