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What is the role of inhalation and exhal...

What is the role of inhalation and exhalation?

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Diaphragm changes its shape during inhalation and exhalation, increases and decreases volume of thoracic cavity respectively. This causes entry and expulsion of air from lungs
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CPC CAMBRIDGE PUBLICATION-CPC MODEL QUESTION PAPER -3-ANSWER THE FOLLOWING QUESTIONS
  1. What is the role of inhalation and exhalation?

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  2. A student has difficulty reading the blackboard while sitting in the l...

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  3. Name the phenomenon associated with the use of (i) CFC (ii) DDT

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  4. Name the gas usually liberated when a dilute acid reacts with a metal....

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  5. Which endocrine gland is called master gland? Why?

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  6. The frequency of source of sound is 10Hz. How many times does it vibra...

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  7. Mention the mode of reproduction used by (a) Amoeba (b) Planaria

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  8. Why is the reaction between methane and chlorine considered a substitu...

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  9. Compute the heat generated while transferring 96000 coulomb of charge ...

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  10. Draw the diagram of the apparatus used in the electrolysis of water.

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  11. Differentiate between metal and non-metal on the basis of chemical pro...

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  12. State three reasons for the following facts: a. Sulphur is a non met...

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  13. Draw the ray diagram showing the recombination of the spectrum of whit...

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  14. Draw the diagram of a simple electric generator. Label the following p...

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  15. Name the hormones responsible for the following i) Excess producti...

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  16. How do Mendel's experiments show that traits are inherited independent...

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  17. What is a homologous series? Explain with an example.

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  18. What are isomers ? Give example.

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  19. Out of two elements A and B with mass number 2 and 235 respectively. W...

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  20. A coil of insulated copper wire connected to a galvanometer. What will...

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