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neet BIOLOGYEasy

Select the correct statement from the ones given below:

A

Barbiturates when given to criminals make them tell the truth

B

Morphine is often given to persons who have undergone surgery

C

Chewing tobacco lowers blood pressure and heart rate

D

Cocaine is given to patients after surgery as it stimulates

Step-by-Step Solution

According to the NCERT text:

  1. Morphine is a very effective sedative and painkiller and is very useful in patients who have undergone surgery
  2. Tobacco contains nicotine, which stimulates the adrenal gland to release adrenaline and nor-adrenaline, hormones that raise blood pressure and increase heart rate making the statement that it lowers them incorrect.
  3. Cocaine is a potent stimulant of the central nervous system but is not described as a post-surgical medication in the text; that role is assigned to morphine
  4. Barbiturates are described as medicines used to help patients cope with mental illnesses like depression and insomnia not as truth serums for criminals.
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