CBSE 2026 · Region 3 · Set 1 · Q29

Read the following passage and answer the question that follow: The data below shows the concentration of nicotine smoked by a smoker taking 10…

Read the following passage and answer the question that follow : The data below shows the concentration of nicotine smoked by a smoker taking $\displaystyle 10$ puffs/minute.

Smoking Cigarette

(a)(i)

With reference to the above graph, explain the concentration of nicotine in the blood at $\displaystyle 10$ minutes.

OR

(a)

(ii)

How will this affect the concentration of carbon monoxide and haem-bound oxygen at $\displaystyle 10$ minutes?

(b)

How does cigarette smoking result in high blood pressure and increase in heart rate ?

(c)

To which class of compounds does nicotine belong ? Name one other drug from the same class.