Discuss the factors responsible for asce | Class 11 Biology Chapter Transport in Plants, Transport in Plants NCERT Solutions

Question: Discuss the factors responsible for ascent of xylem sap in plants.

Answer:

Transpirational pull is responsible for the ascent of water in the xylem. This ascent of water is dependent on the following physical factors:

• Cohesion – Mutual attraction between water molecules

• Surface tension – Responsible for the greater attraction between water molecules in liquid phase than in gaseous phase

• Adhesion – Attraction of water molecules to polar surfaces

• Capillarity –Ability of water to rise in thin tubes.

These physical properties of water allow it to move against gravity in the xylem.

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Comments

Anushree
2019-08-30 12:43:09

Goodð

King
2019-05-15 21:24:45

Not only transpiration pull is necessary others are also there

King
2019-05-15 21:24:28

Not only transpiration pull is necessary others are also there

Satyam shinde
2018-12-09 16:41:54

I like you bro

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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 12: Discuss the factors responsible for ascent of xylem sap in plants.....

Discuss the factors responsible for asce | Class 11 Biology Chapter Transport in Plants, Transport in Plants NCERT Solutions

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