Zoology 11th chapter6

17. Name the respiratory organs of flatworm, earthworm, fish, prawn, cockroach and cat. 

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18. Name the enzyme that catalyses the bicarbonate formation in RBCs. 

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19.Air moving from the nose to the trachea passes through a number of structures. List in order of the structures. 

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20.Which structure seals the larynx when we swallow? 

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21. Resistance in the airways is typically low. Why? Give two reasons. 

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22. How the body makes long–term adjustments when living in high altitude. 

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23.Why is pneumonia considered a dangerous disease? 

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24. Diffusion of gases occurs in the alveolar region only and not in any other part of the respiratory system. Discuss. 

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25. Sketch a flow chart to show the path way of air flow during respiration. 

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26. Explain the conditions which creates problems in oxygen transport.

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