Question

the xylem in plants are responsible for a)transport of water b)transport of food c) transport of amino acid d) transport of oxygen.....​

Answer 1

Answer:

transport of water

Hope it is helpful for you ....

Answer 2

$\Large{ \cdot{ \boxed{ \rm{ \red{Transport \: of \: water\: (A)}}}}}$

The Xylem is a complex permanent tissue which is made up of more than one kind of cells, working as a unit. This is a conducting or vascular tissue. It is meant for the conduction of water and minerals from the roots to other parts of the plant.

In addition to conduction of water and minerals, they help in providing mechanical support to the plant body.

$\Large{ \cdot{ \underline{ \rm{ \green{ Know \: more \: about \: xylem...}}}}}$

Xylem is also known as wood. They forms the bulk of root and stems as a conducting tissue. There are 4 types of cells present in xylem, they are:

• Tracheids - They are elongated dead cells and the chief conducting tissue in non flowering plants. They have blunt ends and lignified walls. They have pits for the movement of sap.
• Vessels - They hav wider lumen. Their end walls are perforated and allows continuous rise in water. But they are present in flowering plants.
• Xylem Parenchyma - These helps in the storage of food and helps in the lateral conduction of sap.
• Xylem fibres - They are sclerenchyma fibres which provides mechanical support to plants.

Out of these all, only the parenchyma is the living cell, others are dead cells. The direction of flow of substances like water and minerals is unidirectional. That is from roots to other parts(upward direction).

For conduction of water, dead protoplasm is very much important, otherwise the vessels and tracheids will absorb all the water and they will not to other parts, hence the trachieds and vessels are dead.

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