Question

5. Give reasons to the following (AS 1)
- Xylem is a conductive tissue
Epidermis gives protection
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Answer 1

Answer:

Xylem is conductive tissue is plant tissue that conduct water mineral salts absorbed from the soil to all the plant cells the main cells in the xylem are thacheid vessel and fibers

Answer 2

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$\rm{\boxed{Xylem\:Is\:A\: Conductive\: Tissue:}}$

• Xylem is a conductive tissue because helps in conduction of water and minerals from roots to all parts of the plant.

• Xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres.

• Trachieds and vessels are tubular structures.

• This allows them to transport water and minerals vertically.

• The parenchyma stores food and helps in the sideways conduction of water.

• Hence xylem is a conductive tissue.

$\rm{\boxed{Epidermis\:gives\: protection:}}$

• The outermost layer of cells is called epidermis.

• It has a protective role to play and hence, cells of epidermal tissue form a continuous layer without intercellular spaces.

• Epidermal cells on the aerial parts of the plant often secrete a waxy, water - resistant layer on their outer surface.

• This aids in protection against loss of water, mechanical injury and invasion by parasitic fungi.

• Hence epidermis gives gives protection in the plant.

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