Transport System in Plants

1 – Stem contains microscopic tubes :– xylem vessels and phloem vessels.

2 – Stem has been designed with precision and in details.

3 – Stems have two main functions. The first one , there are xylems that transport water and minerals from the roots upwards to all other parts of the plant.

4 – The second one , there are phloems that transport nutrients downwards.

5 – There are continuous upward movements in plants.

6 – And the stem support the plant’s branches , leaves and fruits.

7 – The water and mineral absorbed by the root are evenly distributed to the other parts of the plant.

8 – The water passes to the stem to the branches and eventually to the leaves.

9 – After utilizing the water absorbed by the roots , the leaves release the water in the air through its stomata.

10 – So how does the stem and branches distribute the water and minerals in different parts of the plants uniformly ?

11 – The stem conducts water , nutrients and the products of photosynthesis to and from roots and leaves.

12 – They are used to store foods.

13 – Stems provide a support to the leaves and reproductive structures.

14 – The stem also has cells with special thickened walls that help to provide strength.

15 – Stems which are green in color produce foods just like the leaves.

16 – The stem accommodates the transport system which is necessary for the vertical and lateral movement of water and sap within the plant body.