(A) The plant $Erythroxylum$ $coca$ is a shrub that is native to South America.It is well-known for being the source of the alkaloid cocaine,which act

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(A) The plant $Erythroxylum$ $coca$ is a shrub that is native to South America.It is well-known for being the source of the alkaloid cocaine,which acts as a central nervous system stimulant.Therefore,the correct option is $A$.

Class 12 Biology Human Health and Disease Drugs and Alcohol Abuse

Easy

The coca alkaloid or cocaine is obtained from the plant $Erythroxylum$ $coca$. What is the native origin of this plant?

A
South America
B
Africa
C
Australia
D
China

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Class 12 Questions

Class 12

Biology Questions

Chapter

Human Health and Disease

Subtopic

Drugs and Alcohol Abuse

From which plant is morphine obtained?

Medium

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In which activities other than studies should the energy of boys be utilized?

Easy

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Opium is a derivative of which of the following?

Medium

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Match List-$I$ with List-$II$:
List-$I$ (Drug) List-$II$ (Effect)
$A$. Nicotine $I$. Causes sense of euphoria and increased energy
$B$. Morphine $II$. Stimulates adrenal gland to release catecholamines into blood circulation
$C$. Heroin $III$. Effective sedative and painkiller
$D$. Cocaine $IV$. $A$ depressant; slows down body function

Choose the correct answer from the options given below:

List-$I$ (Drug)	List-$II$ (Effect)
$A$. Nicotine	$I$. Causes sense of euphoria and increased energy
$B$. Morphine	$II$. Stimulates adrenal gland to release catecholamines into blood circulation
$C$. Heroin	$III$. Effective sedative and painkiller
$D$. Cocaine	$IV$. $A$ depressant; slows down body function

MediumNEET 2026

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