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CBSE - Class 11 Biology Transport in Plants Worksheet

How is the mycorrhizal association helpful in absorption of water and minerals in plants?

What essential role does the root endodermis play during mineral absorption in plants?

Differentiate between the following:
(a) Diffusion and Osmosis

Explain why xylem transport is unidirectional and phloem transport bi-directional.

Explain why pure water has the maximum water potential.

What role does root pressure play in water movement in plants?

Explain pressure flow hypothesis of translocation of sugars in plants.

Differentiate between the following:
(b) Transpiration and Evaporation

Describe transpiration pull model of water transport in plants. What are the factors influencing transpiration? How is it useful to plants?

10.

Differentiate between the following:
(e) Apoplast and Symplast pathways of movement of water in plants.

11.

What causes the opening and closing of guard cells of stomata during transpiration?

12.

Differentiate between the following:
(f) Guttation and Transpiration.

13.

Describe the role played by protein pumps during active transport in plants.

14.

(b) Explain what will happen to a plant cell if it is kept in a solution having higher water potential.

15.

What are porins? What role do they play in diffusion?

16.

Differentiate between the following:
(c) Osmotic Pressure and Osmotic Potential

17.

Differentiate between the following:
(d) Imbibition and Diffusion

18.

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

19.

Briefly describe water potential. What are the factors affecting it?

20.

What happens when a pressure greater than the atmospheric pressure is applied to pure water or a solution?

Worksheet Answers

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