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(a) Name one process by which materials ...

(a) Name one process by which materials are exchanged through plasma membrane without the expense of energy.
(b) Name one process which involves expense of energy for the transport of materials across the plasma membrane.

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(a) Osmosis
(b) Active transport.
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PRADEEP-THE FUNDAMENTAL UNIT OF LIFE -B. SHORT ANSWER QUESTIONS
  1. State two types of plastids. Write one function of each.

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  2. What are chromosomes ? List their two functions.

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  3. Tabulate six differences between a prokaryotic cell and a eukaryotic c...

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  4. What will happen to a cell when it is placed in (i) hypertonic solutio...

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  5. What is the normal location of the nucleus (i) in an animall cell and ...

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  6. How would you explain 'endosmosis' and 'exosmosis' ?

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  7. How would you differentiate between phagocytosis and exocytosis ?

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  8. (a) Name one process by which materials are exchanged through plasma m...

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  9. Give two major differences between compound microscope and electron mi...

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  10. What is the significance of exocytosis ?

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  11. What advantages does selective permeability of plasma membrane provide...

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  12. What do you mean by bulk transport of materials ? Name two special pro...

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  13. Give atleast two important characteristics of a prokaryotic cell.

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  14. Define the terms 'plasmolysis' and 'deplasmolysis'.

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  15. Which parts of green plastid (chloroplast) are the sites of 'light rea...

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  16. Which type of ribosomes are present in prokaryotic cells and eukaryoti...

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  17. Name the chief constituents of primary cell wall and secondary cell wa...

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  18. Why does a plant cell, when placed in a hypotonic solution, not burst ...

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  19. Why are the mitochondria and plastids called semiautonomous organelles...

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  20. Name the most important function of each of the following : (a) Ribo...

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