Question

A plant tissue having dead cells is

Answer 1

Answer:Sclerenchyma tissue found in the stem, root and many other parts of the plant, is made up of dead cells.

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Explanation:Sclerenchyma, in plants, support tissue composed of any of various kinds of hard woody cells. Mature sclerenchyma cells are usually dead cells that have heavily thickened secondary walls

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Answer 2

Answer:

Explanation:

The xylem is composed of- xylem parenchyma cells, xylem fiber cells both of which provide structural support for the treachery elements of the xylem.

The treachery elements become completely dead at maturity which is a pipe- like structure that allows water and dissolved materials to flow through them.

The treachery elements are of 2 types- vessel elements and tracheids.  

As the treachery elements are dead at maturity they play a passive role in the transportation of water through the plant.  

These treachery elements of xylem have a secondary cell wall thickenings in the form of rings which provide maximum structural support.

So, the correct answer is 'Xylem'

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