Drugs and Alcohol Abuse Questions in English

(C) The drug that binds to specific opioid receptors present in our $CNS$ (Central Nervous System) and gastrointestinal tract is $Heroin$ (also known as smack).
$Heroin$ is a diacetylmorphine,which is a white,odorless,bitter crystalline compound.
It is obtained by acetylation of morphine,which is extracted from the latex of the poppy plant ($Papaver$ $somniferum$).
$Heroin$ acts as a depressant and slows down body functions.

(A) Smack (Heroin) is a depressant that slows down body functions. It does not cause extreme happiness,irritability,or paranoia; these are typically associated with stimulants like cocaine or amphetamines.
Hashish is a cannabinoid that significantly affects the cardiovascular system.
Cocaine is a stimulant that interferes with the transport of the neurotransmitter dopamine,leading to its accumulation and causing euphoria.
Lysergic acid $(LSD)$ is a well-known hallucinogen that causes hallucinations and day-dreaming.
Therefore,the incorrect match is $A$.

(A) Statement-$I$ is correct: $Parkinson's$ disease is a progressive nervous system disorder that occurs due to the loss of neurons in the substantia nigra region of the brain,which are responsible for producing the neurotransmitter $Dopamine$.
Statement-$II$ is correct: Cocaine is a stimulant drug that interferes with the reuptake of $Dopamine$ in the synaptic cleft,leading to an accumulation and increased level of $Dopamine$ in the brain,which causes a feeling of euphoria.

(A) Statement $I$ is incorrect because the misuse of anabolic steroids is primarily done to increase muscle strength and bulk,not to decrease it.
Statement $II$ is correct because the side effects of anabolic steroids in females include masculinization (features like increased aggressiveness,mood swings,depression,abnormal menstrual cycles,excessive hair growth on the face and body,enlargement of the clitoris,and deepening of voice).

(C) Diacetylmorphine, commonly known as heroin, is a semi-synthetic opioid.
It is produced by the acetylation of morphine.
Morphine is the primary alkaloid extracted from the latex of the poppy plant, $Papaver somniferum$.
Therefore, the source plant for diacetylmorphine is $Papaver somniferum$.

(D) The correct answer is $D$.
$Cannabis sativa$ (hemp plant) contains cannabinoids,which are known for their hallucinogenic properties.
$Claviceps purpurea$ is a fungus that produces ergot alkaloids,which can also have hallucinogenic effects,but in the context of standard biology textbooks discussing drugs of abuse,$Cannabis$ is the primary example cited for hallucinogenic properties.
$Atropa belladonna$ contains tropane alkaloids (atropine,scopolamine) which are deliriants.
$Papaver somniferum$ is the source of opioids (morphine,heroin),which are depressants,not hallucinogens.

(D) Drugs like $Barbiturates$,$Amphetamines$,and $Benzodiazepines$ are commonly used in medicine as sedatives,tranquilizers,and stimulants to treat patients suffering from mental illnesses like depression and insomnia.
$LSD$,$Cocaine$,$Heroin$,$Marijuana$,$Charas$,$Ganja$,and $Hashish$ are primarily known for their abuse potential and are generally not used as standard medicines in clinical practice due to their high addictive nature and severe side effects.

(A) Cirrhosis is a chronic liver disease characterized by the replacement of healthy liver tissue with scar tissue (fibrosis). One of the most common causes of cirrhosis is chronic,heavy alcohol consumption,which leads to inflammation and damage to liver cells over time. Therefore,option $A$ is the correct description.

(C) The chemical structure shown in the image is that of a cannabinoid, specifically Cannabinol or a related compound like Tetrahydrocannabinol $(THC)$.
These chemicals are obtained from the inflorescences of the plant $Cannabis \text{ } sativa$.
Cannabinoids are known for their effects on the cardiovascular system of the body.

(A) The correct matching is as follows:
$1$. $Papaver \text{ } somniferum$ is the source of Opioids $(D)$.
$2$. $Cannabis \text{ } sativa$ is the source of Marijuana $(A)$.
$3$. $Erythroxylum \text{ } coca$ is the source of Cocaine $(B)$.
$4$. $Dhatura$ is known for its Hallucinogenic properties $(C)$.
Thus, the correct sequence is $(1-D), (2-A), (3-B), (4-C)$.
Therefore, the correct option is $A$.

(D) The chemical structure shown in the image represents Morphine.
Morphine is an alkaloid extracted from the latex of the poppy plant,Papaver somniferum.
It is a potent sedative and painkiller,which is very useful in patients who have undergone surgery.
It acts on the central nervous system to relieve pain and induce sleep.

(A) Smoking involves the inhalation of tobacco smoke,which contains $Nicotine$.
$Nicotine$ acts as a stimulant that triggers the release of adrenaline and noradrenaline from the adrenal glands.
These hormones increase the heart rate and constrict blood vessels,which leads to an increase in blood pressure.
Therefore,both the Assertion and the Reason are true,and the Reason correctly explains why smoking increases blood pressure and heart rate.

(D) The correct answer is $D$.
Withdrawal syndrome refers to the set of physical and psychological symptoms that occur when a person who is dependent on a substance (such as drugs or alcohol) suddenly stops or reduces its intake.
Common symptoms include restlessness,shivering,nausea,sweating,anxiety,and tremors.
Turner's syndrome,Down's syndrome,and Klinefelter syndrome are genetic disorders caused by chromosomal abnormalities,not by the cessation of substance use.

(D) The acetylation of morphine produces $Heroin$ (also known as $Diacetylmorphine$).
$Heroin$ is a white,odorless,bitter crystalline compound.
It is synthesized by the acetylation of morphine,which is extracted from the latex of the poppy plant,$Papaver$ $somniferum$.
Therefore,the correct option is $D$.

(D) Morphine.
$Morphine$ is a well-known opiate narcotic derived from the latex of the poppy plant,$Papaver$ $somniferum$.
It acts as a central nervous system depressant and is primarily used as a potent analgesic for pain relief.

(C) The correct answer is $C$.
Anabolic steroids are synthetic compounds that mimic the effects of testosterone.
When used by females,they cause significant hormonal imbalances leading to masculinisation.
Key side effects in females include:
$1$. Development of male-like features (masculinisation).
$2$. Abnormal menstrual cycles.
$3$. Excessive hair growth on the face and body (hirsutism).
$4$. Enlargement of the clitoris.
$5$. Deepening of the voice.

(B) $Erythroxylum$ $coca$ is the correct answer.
$Erythroxylum$ $coca$ is a shrub native to South America.
The leaves of this plant are used to extract a stimulant drug known as cocaine or coca alkaloid,which interferes with the transport of the neurotransmitter dopamine.

(A) The correct answer is $A$ (Dopamine).
Cocaine is a coca alkaloid obtained from the coca plant, $Erythroxylum$ $coca$, which is native to South America.
It interferes with the transport of the neurotransmitter dopamine by blocking its reuptake into the presynaptic neuron, leading to an accumulation of dopamine in the synaptic cleft and causing a sense of euphoria.

(B) Lysergic Acid Diethylamide $(LSD)$.
Lysergic Acid Diethylamide $(LSD)$ is one of the most potent mood-altering chemicals. It is derived from lysergic acid,which is found in the ergot fungus that grows on rye and other grains. It influences brain function by interacting with serotonin receptors in the cortex and deep brain structures. In controlled medical contexts,such substances are sometimes researched for their potential to treat severe mental health conditions like depression and insomnia.

(C) The chemical structure shown in the image is that of a cannabinoid,specifically Cannabinol or a related compound derived from the plant Cannabis sativa.
Cannabinoids are a group of chemicals that interact with cannabinoid receptors in the brain.
Cannabis sativa is the source of various drugs such as marijuana,ganja,hashish,and charas.
Therefore,the correct option is $(C)$.

(C) . Latex of Poppy plant.
Morphine is a potent analgesic alkaloid obtained from the dried latex of the unripe seed capsules of the poppy plant,$Papaver$ $somniferum$.

(D) $Smack$ (heroin) is a depressant obtained from the latex of the poppy plant, $Papaver$ $somniferum$.
$Crack$ (cocaine) is a stimulant obtained from the leaves of the coca plant, $Erythroxylum$ $coca$.
Therefore, the correct answer is $D$.

(D) is the correct answer.
Heroin,commonly known as smack,is chemically diacetylmorphine.
It is a white,odorless,bitter,crystalline compound.
It is extracted from the latex of the poppy plant ($Papaver$ $somniferum$) and is prepared by the acetylation of morphine.

(C) Statement $I$ is incorrect because Heroin (diacetylmorphine) is obtained by the acetylation of morphine,not the other way around.
Statement $II$ is correct because cannabinoids are a group of chemicals that interact with cannabinoid receptors in the brain and are well-known for their significant effects on the cardiovascular system of the body.

(C) Anabolic steroids are synthetic variants of the male sex hormone testosterone. When used by females,they can cause masculinizing side-effects such as the enlargement of the clitoris,increased hair growth,and deepening of the voice.

(C) The structure provided in the image is that of Cannabidiol $(CBD)$,which is a major cannabinoid found in the plant *Cannabis sativa*.
Cannabinoids are a class of diverse chemical compounds that act on cannabinoid receptors in cells that repress neurotransmitter release in the brain.
*Cannabis sativa* is the natural source of these compounds,including $THC$ and $CBD$.

(D) $1$. Nicotine acts as a stimulant that triggers the adrenal gland to release catecholamines (like adrenaline) into the blood circulation $(A-II)$.
$2$. Morphine is a potent opioid that acts as an effective sedative and painkiller $(B-III)$.
$3$. Heroin is a depressant that slows down body functions $(C-IV)$.
$4$. Cocaine is a stimulant that interferes with dopamine transport,causing a sense of euphoria and increased energy $(D-I)$.
Therefore,the correct matching is $A-II, B-III, C-IV, D-I$.