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How does smoking tabacco in human lead t...

How does smoking tabacco in human lead to oxygen deficiency in their body?

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Tobacco smoke contains carbon monoxide which binds haemoglobin and decreases its O,-carrying capacity to the body tissues
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In the following question a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as : Assertion (A): Smoking increases the carbon monoxide (CO) content in the blood which has greater affinity to haemoglobin than oxygen. Reason (R) CO forms a stable bond with haemoglobin and does not allow binding of oxygen. It reduces concentration of haem bound oxygen and causes oxygen deficiency in the body.

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MODERN PUBLICATION-HUMAN HEALTH AND DISEASES-REVISION EXERCISES (II. VERY SHORT ANSWER QUESTIONS) (B. QUESTIONS FROM CBSE EXAMINATIONS)
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  4. State two different roles of spleen in the human body.

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  11. Give an example of a plant which came into India as a contaminant and ...

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  13. Indiscriminate diagnostic practices using X-rays etc. should be avoide...

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  14. Retroviruses have no DNA. However, the DNA of the infected host cell d...

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  15. give an example of human disorder that is due to a single gene ...

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  17. Name two diseases whose spread can be controlled by the eradication of...

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  19. Name any two physiological barriers that provide innate immunity.

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