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Respiration in insects is called direct ...

Respiration in insects is called direct be- cause

A

The cells exchange `O_2//CO_2` directly with the air in the tubes

B

The tissues exchange `O_2//CO_2` directly with coelomic fluid

C

The tissue exchange `O_2//CO_2` directly with the air outside through body surface

D

Tracheal tubes exchange `O_2//CO_2` directly with the haemocoel which then exchange with tissues

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The correct Answer is:
A
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AAKASH SERIES-BREATHING AND EXCHANGE OF GASES -EXERCISE-III (Previous AIPMT/NEET Questions)
  1. Respiration in insects is called direct be- cause

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  2. Lungs are made up of air filled sacs the alveloi they do not collase ...

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  3. Which of the following cannot be measured by spirometry?

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  4. A pollution can result in Emphysema, which is

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  5. Name the chronic respiratory disorder caused mainly by cigarette smoki...

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  6. Reducing in pH of blood will

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  7. The partial pressure of oxygen in the alveoli of the lungs is

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  8. Lungs do not collapse between breaths and some air always remains in t...

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  9. In which disease due to narowing of tracheal passages alveoli are depr...

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  10. When you hold your breath, which of ~he following gas changes in blood...

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  11. Approximately seventy percent of carbon dixode absorbed by the blood w...

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  12. The figure shows a diagrammatic view of human respiratory system with ...

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  13. Which one of the following is the correct statement for respiration in...

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  14. Why people migrate from place to place? Is there any families migrate ...

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  15. A large proportion of oxygen remain unused in the human blood even aft...

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  16. The figure given below shows a small part of human lung where exchange...

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  17. Bulk of carbon dioxide (CO(2)) released form body tissues in to the b...

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  18. Which one of the following is a possibility for most of us in regard t...

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  19. Which of the following statement is true about RBCs in humans?

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  20. Listed below are four respriatory capacities (i-iv) and four jumbled ...

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  21. What is vital capacity of our lungs ?

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