Question

15. a) The movement of water through the root layers is ultimately symplastic in the endodermis. why​

Answer 1

Answer:

The movement of water through the root layers is ultimately symplastic in the endodermis.

Explanation:

Because this is the only way water and other solutes can enter the vascular cylinder. Once inside the xylem, water is again free to move between cells as well as through them

Answer 2

The movement of water through the root layers is ultimately symplastic in the endodermis due to the presence of Casparian strips.

• Water is absorbed by unicellular root hairs through diffusion. This water moves up through the xylem.
• The endodermal cells have Casparian strips. These strips are hydrophobic and found in the cell wall.
• Now, since water can not come in contact here, so it has to follow a symplastic pathway.
• After crossing the endodermis, water can move by either pathway.