BIOLOGI EXPERIMENT

THE FUNCTION XYLEM TISSUE IN PLANT

Ø  OBJECTIVE

            Student are able identify xylem tissue in plant

Ø  DEVICES AND MATERIALS

a.    Beaker

b.    Coloured Solution

c.    Stem of celery

Ø  WORK PROCEDURING

Step 1 : Place a celery stem, with its leaves intact in a beaker of coloured water as in figure.

Step 2 : Place a second stem of about the same weight, but with all its leaves removed, in another beaker of coloured water.

Step 3 : After 20 minutes, remove both stalks and cut the stems at regular intervals to see how far the coloured water had risen.

*)  The rate of transpiration is fastest where water rises the furthest. Which factor enable the water to rise the furthest?

Ø  EXPERIMENT

        The same of work proceduring

Ø  THE RESULT OF EXPERIMENT

       Basic on work proceduring is success , because Xylemis formed of thick-walled,tubular and often dead cells.The cells are placed end to end like drain pipes ,and the partitions between the cell dissolve to form long pipelines for the transport of water and minerals. Xylem cells transport water and minerals absorbed by the roots from the soil. They transport them to leaves where glucose is prepared during photosynthesis. Old Xylem forms wood and does not participate in transport.

http://wiki.answers.com/Q/What_is_the_function_of_Xylem_tissue#ixzz1DLwQQ6k3

Ø  CONCLUTION

So , Xylem tissue found in the part of wood plant. function drain water from the roots    towards the top of the plant.

Ø  LITERATURE :

Literature :   http://www.biotopics.co.uk/plants/pltrsu.html