Class 11 Biology - Chapter Transport in Plants NCERT Solutions | What happens when a pressure greater tha
Welcome to the NCERT Solutions for Class 11th Biology - Chapter Transport in Plants. This page offers a step-by-step solution to the specific question from Exercise 1, Question 7: what happens when a pressure greater than the atmo....
Question 7
What happens when a pressure greater than the atmospheric pressure is applied to pure water or a solution?
Answer
The water potential of pure water or a solution increases on the application of pressure values more than atmospheric pressure. For example: when water diffuses into a plant cell, it causes pressure to build up against the cell wall. This makes the cell wall turgid. This pressure is termed as pressure potential and has a positive value.
More Questions From Class 11 Biology - Chapter Transport in Plants
- Q:- Explain why xylem transport is unidirectional and phloem transport bi-directional.
- Q:- (a) With the help of well-labelled diagrams, describe the process of plasmolysis in plants, giving appropriate examples.
(b) Explain what will happen to a plant cell if it is kept in a solution having higher water potential. - Q:- What role does root pressure play in water movement in plants?
- Q:- Explain pressure flow hypothesis of translocation of sugars in plants.
- Q:- What are the factors affecting the rate of diffusion?
- Q:- What are porins? What role do they play in diffusion?
- Q:- Explain why pure water has the maximum water potential.Explain why pure water has the maximum water potential.
- Q:- Describe transpiration pull model of water transport in plants. What are the factors influencing transpiration? How is it useful to plants?
- Q:- Briefly describe water potential. What are the factors affecting it?
- Q:- What causes the opening and closing of guard cells of stomata during transpiration?
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1 Comment(s) on this Question
john henry
2015-10-28 19:23:40
how much positive value ?
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