Root Pressure Theory

Q.

Is the root pressure positive or negative?

Q.

Is root pressure active or passive?

Q.

Absorption of minerals by the epidermal cells of root and root hair causes the water to enter from surrounding soil into roots. It further reaches the root xylem. Thus, due to a continuous uptake of water by root cells, a water pressure is created in the root xylem. This pressure is called as________

1. Osmotic pressure

2. Root pressure

3. Turgor pressure

4. Wall pressure

Q. The pressure that forces water, absorbed from the soil, to move through the roots and up the stem of a plant is called

1. turgor pressure
2. wall pressure
3. osmotic pressure
4. root pressure

Q.

Force responsible for the ascent of sap is

Capillary force

Root pressure

Transpirational pull

All of the these

Q.

The pressure developed in roots due to the continuous in flow of water which pushes the sap upwards is called

1. root pressure

2. sap pressure

3. transpiration pull

4. stem pressure

Q.

Root hair help to absorb water- Give reasons.

Q. Detail explination of transportation pull?

Q.

Choose the odd one out of the following terms given and name the category to which others belong:

Xylem removal, water transport, wilting, beaker of water, swelling.

Q.

Guttation is defined as:

1. Movement of soluble organic materials through plants.

2. Movement of water through the apoplast.

3. Secretion of xylem sap.

4. Negative pressure created by transpiration.

Q.

The pressure generated in the roots that assist in driving water, minerals and ions from the soil in upwards directions into the plant’s xylem is known as ___.

Q. Root pressure is enough to transport water in small trees and bushes.

1. True

2. False

Q.

What do you know about root pressure?