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CBSE - Class 11 Biology Transport in Plants Worksheet

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

(a) With the help of well-labelled diagrams, describe the process of plasmolysis in plants, giving appropriate examples.

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

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

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

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

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

Differentiate between the following:
(d) Imbibition and Diffusion

Explain pressure flow hypothesis of translocation of sugars in plants.

10.

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

11.

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

12.

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

13.

Explain why pure water has the maximum water potential.

14.

Differentiate between the following:
(b) Transpiration and Evaporation

15.

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

16.

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

17.

Differentiate between the following:
(a) Diffusion and Osmosis

18.

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

19.

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

20.

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

Worksheet Answers

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