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What do you mean by 'All or none law'?...

What do you mean by 'All or none law'?

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UNITED BOOK HOUSE-MODEL PAPER 2-EXERCISE
  1. What are actin and myosin.

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  2. What is iso enzyme? Give example.

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  3. What Krebs cycle is called TCA Cycle ?

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  4. How many ATP molecules are produced from a glucose molecule during the...

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  5. What do you mean by 'All or none law'?

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  6. What are the character about diatoms? Write its economic importance.

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  7. Mention the differences between Monera and Protista.

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  8. Distinguish between 'A' and 'I' band.

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  9. State the characteristics of cardiac muscle and write two differences ...

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  10. Name the tissues in which the following structures are found: Myofibri...

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  11. Briefly descrine the important features of biomolecules.

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  12. What are homopolysccharides and heteropolysaccharides with suitable ex...

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  13. Write three factors responsible for artierial blood pressure.

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  14. Which type of muscle has no fatigue and why?

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  15. What do you mean by isotonic & isometic muscle contraction.

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  16. Explain the lock and key hypothesis is of enzyme action.

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  17. Explain allosteric regulation of enzyme action.

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  18. Describe in detail how ATP and NADPH are formed during photochemical r...

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  19. Where does carboxylation take place in C3 plants? Explain the process.

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  20. What are the different types of heart sound. State their causes and si...

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