Q . ᴡʜᴀᴛ ɪꜱ ʀᴏᴏᴛ ᴘʀᴇꜱꜱᴜʀᴇ ?
Answers
Question:
What is root pressure?
Answer:
Root pressure is a force or the hydrostatic pressure generated in the roots that help in driving the fluids and other ions from the soil in upwards directions into the plant’s vascular tissue – Xylem. This process is produced by osmotic pressure in the cells of the root. Root pressure is more common during the spring seasons before the leaves develop and the rate of
the transpiration is rapid.
★Effect of Root Pressure:-
The effects of root pressure can be seen only during nights and in the early morning as the rate of evaporation is very low. The main contribution of the root pressure is to establish the continuous movements of the water molecules in the xylem which can be
affected by the transpiration.
★ Process of Root pressure:-
During root pressure, water passes through the root tissues freely, but the minerals do not (the root is a semi-permeable barrier). As per the natural phenomenon of osmosis, the water molecules naturally flows from the area of low mineral concentration to the area of high mineral concentration, and this flow of water into the root pressurizes it. This is the process of osmosis is very common in all other
animal and plant cell.
★ Let's take an example:-
In non-woody plants, osmosis allows plant cells to accumulate water and be plump enough to keep the plant upright.
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llMore to knowll
Root pressure can be easily observed when the trees are chopped down during the spring season. When a particular tree is chopped or saw down, we can
generally see a stump that bleeds sap.
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