NEETZoologyHuman Health and Diseases
Substance or Condition Effect on Body A. Nicotine 1. Increases carbon monoxide content in blood B. Adrenaline 2. Increases heart rate and blood pressure C. Carbon monoxide (CO) 3. Reduces haembound oxygen D. Tobacco chewing 4. Increased risk of oral cavity cancer
Options
- AA-3; B-2; C-1; D-4
- BA-2; B-1; C-3; D-4
- CA-2; B-3; C-4; D-1
- DA-2; B-3; C-1; D-4
Correct answer
B. A-2; B-1; C-3; D-4
Step-by-step solution
Nicotine stimulates the release of adrenaline, which increases heart rate and blood pressure. Adrenaline and nor-adrenaline contribute to physiological changes like increased heart rate. Carbon monoxide binds to hemoglobin, reducing the oxygen-carrying capacity of blood. Tobacco chewing significantly raises the risk of oral cavity cancer.