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Give two reasons why aII minerals cannot...

Give two reasons why aII minerals cannot be absorbed passively by the roots.

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ASSAM ACADEMIC CENTRE-TRANSPORT IN PLANTS-EXAMPLE
  1. How is a turgid cell different from a flaccid cells?

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  2. What is imbibition pressure? What is the usefulness of imbibition pres...

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  3. Describe an experiment to show that water movement occurs through xyle...

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  4. How does mass/bulk flow of substances differ from diffusion?

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  5. Why does apoplast pathway occur in the root cortex but not in endoderm...

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  6. How is the mycorrhizal association helpful in absorption of water and ...

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  7. Define root pressure.

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  8. Development of root pressure requires energy Justify.

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  9. How can root pressure be demonstrated?

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  10. Draw a labelled diagram of a stomatal apparatus.

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  11. Differentiate between the following : Guttation and Transpiration.

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  12. Describe the structure of a guard cell of a dicot plant.

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  13. Give two reasons why aII minerals cannot be absorbed passively by the ...

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  14. Mention four sinks for mineral elements/lons in plants.

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  15. In plants, there is a complex traffic of compounds moving in an orderl...

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  16. Mention three similarities and two differences between facilitated dif...

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  17. Define osmosis. Demonstrate an experiment to show osmosis.

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  18. Explain why pure water has the maximum water potential.

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  19. How is opening & closing of stomata controled?

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  20. Define transpiration? Why is it useful? Mention any three environmenta...

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