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What are porins?...

What are porins?

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The porins are proteins that form huge pores in the outer membranes of the plastids, mitochondria and some bacteria allowing molecules up to the size of small proteins to pass through.
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ICSE-TRANSPORT IN PLANTS -TEST YOUR PROGRESS (VERY SHORT ANSWER TYPE QUESTIONS)
  1. How can you revert a freshly plasmolysed plant cell to its normal stat...

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  2. A plant cell is kept in a hypotonic solution. What will happen to the ...

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  3. Mention the most significant function/role of guard cells in plants.

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  4. Why do plant cells not burst when placed in water?

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  5. Name the best known contribution of Sir J. C. Bose.

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  6. What would happen if a plasmolysed cell is kept in pure water?

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  7. Elaborate the abbreviation "OP"

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  8. Elaborate the abbreviation "DPD"

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  9. Explain why salt is added in excess to pickles

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  10. Jamming of wooden doors and windows takes place during rainy season. G...

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  11. Give the scientific term for the specialised structure through which g...

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  12. State the most significant contribution of Dixon and Jolly:

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  13. A cut plant wilts fast even if its cut end is dipped in water.

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  14. What will happen if excess fertilizers are added to soil?

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  15. Give a scientific term for The hydrostatic pressure developed insid...

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  16. What are porins?

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  17. What occupies the space between the cell wall and the shrunken protopl...

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  18. What is the wo of the flaccid cell?

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  19. When we burn agarbatti in a room, its smell spreads in the entire room...

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  20. What happens when a pressure greater than the atmospheric pressure is ...

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