Long Distance Transport of Water

Which of the following helps in ascent of sap?

Define surface tension property of water.

Fill in the blanks with the correct options given in the bracket.

The transpiration driven ascent of xylem sap depends on the _____ property of the water. (photosynthetic/ chemiosmotic/ cohesion)

The force between the water column and tracheary elements that prevent its fall down is called _____.(write one word)

Define the cohesive property of water.

The column of water does not fall down under the effect of gravity because of adhesion, cohesion and surface tension of water molecules. It is related to which of the following?

What are the properties of water that help in the ascent of sap in the plants.

Explain how the hydrostastic pressure gradient helps in the transport of water in plants.

Large positive values of hydrostatic pressure in a plant cell is induced by _____.

What is hydroststic pressure gradient in plant cells?

Xylem sap is made up of 

The endodermis is impermeable to water due to _____ deposition.

Which tissue is responsible for upward movement of the water during the ascent of sap in the plant?

Which of the following pathway/s of water flow is/are done by osmosis?

Osmosis is involved in the apoplastic pathway.

The endodermis is impervious to water.

Transpiration pull theory is considered best to explain the ascent of sap.

Fill in the blank with the correct option provided in the bracket.

Cohesion-tension theory is also known as _____. (root pressure theory/ capillary theory/ transpiration pull theory)

Fill in the blank with the correct option provided in the bracket.

_____ is the positive pressure responsible for pushing up water to a small height. (Osmosis, Root pressure, Stem pressure)

The ascent of sap is the active process and required energy expenditure by the plant.