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Why do most substances have to be assist...

Why do most substances have to be assisted through the plasma membrane? Contrast movement by facilitated transport with movement by active transport.

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ICSE-CELL : THE UNIT OF LIFE -Short/Long Answer Type Questions
  1. Write short notes on Fluid mosaic model

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  2. Tell how the phospholipids are arranged in the plasma membrane. What ...

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  3. Why do most substances have to be assisted through the plasma membran...

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  4. Explain the following terms: rough and smooth endoplasmic reticulum, ...

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  5. Name any three single membrane bound cell organelles. How these organ...

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  6. State the main functions of the ribosome

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  7. State the main functions of the lysosome

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  8. State the main functions of the chromosome.

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  9. State the main functions of the peroxisome

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  10. List the functions of rough and smooth endoplasmic reticulum and Golg...

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  11. What are the two principal roles of the nucleus? What biomolecule is ...

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  12. What structural and functional characteristics do cilia, flagella and...

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  13. What is the major cellular difference between prokaryotic and eukaryo...

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  14. Beginning from the outside surface, list the parts of a typical plant...

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  15. Name the structures in plants that connect and provide a translocatio...

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  16. Name the different types of plastids that may be found in plant cells...

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  17. What structural and chemical features do the microbodies in plant cel...

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  18. What are chromosomes? What are they made of ?

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  19. Why does a nuclear envelope have pores while other membranes of a cel...

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  20. Why are bound ribosomes and Golgi bodies especially abundant in cells...

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