Question

Explain about Xylem and Phloem?​

Answer 1

Xylem:

transport minerals and waters from the roots

Phloem:

transports food materials that are prepared by the green parts of the plants to other parts of the plant.

Answer 2

$\bold{Answer}$

_______________
$\bold{Xylem}$
_______________

☞ Xylem helps in the transportation of water and minerals.


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


☞ Most of the cells are dead and have thick walls .


☞Tracheids 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. Fibres are mainly supportive in function.


☞In xylem , movement of water and minerals is always in one $\bold{direction}$ ( uni - directional).


☞Tracheids - Dead


☞Vessels - Dead


☞Xylem parenchyma - living


☞Xylem fibre - Dead
______________
$\bold{Phloem}$
______________


☞ Phloem helps in translocation of food and hormones.


☞Phloem is made up of four types of elements : Sieve tubes , Companion cells , Phloem fibres and Phloem $\bold{parenchyma}$.


☞ Most of the cells are living .


☞Sieve tubes are tubular cells with perforated walls.


☞Phloem is unlike xylem in that materials can move in both directions ( multi - directional ).


☞Phloem transports food from leaves to other parts of the plant . Except for phloem fibres , phloem cells are living cells.


☞Sieve tubes - Living


☞Companion cells - Living


☞Phloem parenchyma - Living


☞Phloem fibres - Dead