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STD 12 - 7. human health and disease — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 7. human health and disease1 Mark
MCQ
Nicotine is
  • A
    An alkaloid
  • B
    Steroid
  • C
    Stimulant
  • ✓
    Both $(a)$ and $(c)$
✓

Answer

Correct option: D.
Both $(a)$ and $(c)$
d
Tobacco contains large number of chemical substances including nicotine, an alkaloid. Nicotine stimulates adrenal gland to release adrenaline and noradrenaline into blood circulation, both of which raise blood pressure and increases the heart rate

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