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Statement I : Rate of breathing is regu...

Statement I : Rate of breathing is regulated by respiratory centres present in the medulla oblongata.
Statement 2 , Changes in the `CO_(2)` level of the arterial blood control the rate of breathing.

A

Both statement 1 and 2 correct.

B

Statement 1 is correct but statement 2 is incorrect.

C

Statement 1 is incorrect but statement 2 is correct.

D

Both statement 1 and 2 incorrect.

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The correct Answer is:
A
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NCERT FINGERTIPS ENGLISH-BREATHING AND EXCHANGE OF GASES-Breathing And Exchange Of Gases
  1. Complete the following sentence by selecting the correct option. the...

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  2. When CO(2) concentration in blood increases breathing becomes

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  3. Statement I : Rate of breathing is regulated by respiratory centres ...

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  4. Read the following four statement (i) - (iv) with certain mistakes in ...

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  5. Human beings have a significant ability to maintain and moderate the r...

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  6. The urge to inhale in humans results from

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  7. Read the following four statement carefully. (i) Ventral respiratory...

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  8. Emphysema is a condition resulting from

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  9. Which one of the following is the incorrect statement for respiration ...

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  10. Given below are few respiratory disorders. Identify occupational respi...

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  11. Which of the following statements is correct ?

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  12. Following are few characters of a disorder from the choices give below...

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  13. Visiting high mountains may cause altitude sickness in men living in ...

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  14. Carbon monoxide can kill a person because of it's extermely high affin...

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  15. The toxic effect of carbon monoxide is due to its greater affinity for...

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  16. Blood analysis of a patient reveals an ususually high quantity of carb...

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  17. During winter a person died during sleep, the room was closed and a co...

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  18. Blood can combine with almost "" of oxygen if the haemoglobin is 100 p...

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  19. Which of these is incorrect regarding A and B in the given graph ?

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  20. Which of these is correct regarding D, E and F areas in the graph ?

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