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Sarita Aggarwal solutions for Biology [English] Class 12 ISC chapter 11 - Adolescent Issues: Alcoholism and Drugs [Latest edition]

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Sarita Aggarwal solutions for Biology [English] Class 12 ISC chapter 11 - Adolescent Issues: Alcoholism and Drugs - Shaalaa.com
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Solutions for Chapter 11: Adolescent Issues: Alcoholism and Drugs

Below listed, you can find solutions for Chapter 11 of CISCE Sarita Aggarwal for Biology [English] Class 12 ISC.


EXERCISES
EXERCISES [Pages 643 - 651]

Sarita Aggarwal solutions for Biology [English] Class 12 ISC 11 Adolescent Issues: Alcoholism and Drugs EXERCISES [Pages 643 - 651]

A. OBJECTIVE QUESTIONS I. Multiple choice questions Choose the correct answer:

I. 1.Page 643

Which one of the following is a synthetic drug?

  • morphine

  • amphetamines

  • cocaine

  • charas

I. 2.Page 643

Which one of the following is not a derivative of opium?

  • morphine

  • codeine

  • heroin

  • cocaine

I. 3.Page 643

Amphetamines have the following effect on the body.

  • cause drowsiness

  • bring hallucinations

  • stimulate the body

  • depress the body

I. 4.Page 643

Which drugs are commonly called sleeping pills?

  • barbiturates

  • amphetamines

  • opiate narcotics

  • LSD

I. 5.Page 643

Which one of the following is a psychedelic drug?

  • opium

  • LSD

  • cocaine

  • morphine

I. 6.Page 643

Which one of the following drugs causes hallucinations?

  • LSD

  • caffeine

  • opium

  • amphetamines

I. 7.Page 643

Alcohol is a ______.

  • stimulant

  • depressant

  • barbiturate

  • amphetamine

I. 8.Page 643

What happens to alcohol in the cells?

  • it is broken to harmless substances

  • it is oxidised and heat is produced

  • it dehydrates the cell

  • it is stored as fat

I. 9.Page 643

Which one of the following is not true during excessive intake of alcohol?

  • decreased reaction time

  • hallucination

  • impaired judgement

  • lack of alertness

I. 10.Page 643

Which of the following is an opiate narcotic?

  • codeine

  • cocaine

  • caffeine

  • mescalin (heroin)

I. 11.Page 643

A natural plant product, used as a sedative.

  • cocaine

  • valium

  • heroin

  • caffeine

I. 12.Page 643

Which one of the following is obtained from the hemp plant, Cannabis sativa?

  • charas

  • cocaine

  • heroin

  • opium

I. 13.Page 643

Where does alcohol effect immediately after drinking?

  • Eyes

  • Auditory region

  • Liver

  • Central nervous system

Fill in the blanks

II. 1.Page 644

Less response of a drug to a specific dose with repeated use is called ______.

II. 2.Page 644

Caffeine is present in ______, ______, ______ and ______.

II. 3.Page 644

______ is taken by students as it gives a false feeling of alertness and awakefulness.

II. 4.Page 644

______ are commonly called sleeping pills.

II. 5.Page 644

Opium is obtained from the ______, plant with scientific name ______.

II. 6.Page 644

______ is chemically the drinking alcohol.

II. 7.Page 644

Alcohol is produced by the action of ______ on ______.

II. 8.Page 644

Severe degeneration of liver due to excessive intake of alcohol is called ______.

II. 9.Page 644

Fermented beverages like beer contain ______ content of alcohol.

II. 10.Page 644

Alcohol ______ the reaction time of an alcoholic.

III. 1.Page 644

State whether the following is true or false.

Morphine and codeine are obtained from opium.

III. 2.Page 644

State whether the following is true or false.

Amphetamines are used as sleeping pills as they depress the activity of central nervous system.

III. 3.Page 644

State whether the following is true or false.

Ethyl alcohol is used as an antifreeze in automobile radiators.

III. 4.Page 644

State whether the following is true or false.

Active ingredient in morphine is opium and is used to relieve pain.

III. 5.Page 644

State whether the following is true or false.

Alcohol is a stimulant and so feel happy and elated after taking it.

IV.Page 644

Match the following.

Column A Column B
1. Opium (a) Erythroxylum
2. Marijuana (b) Nicotiana
3. Cocaine (c) Papaver somniferum
4. LSD (d) Ergot fungus
5. Tobacco (e) Cannabis sativa
V. 1.Page 644

Answer the following in one or two words.

Answer the following in one or two words A white colourless and crystalline semi-synthetic opioid.

V. 2.Page 644

Answer the following in one or two words.

A group of chemicals or drugs obtained from the dried leaves and flower parts of a specific hemp plant, that affect cardiovascular system.

V. 3.Page 644

Answer the following in one or two words.

A group of synthetic drugs often used as 'pep pills' to stimulate nervous system.

V. 4.Page 644

Answer the following in one or two words.

The type of alcohol obtained by the action of yeast on sugars and also used as 'drinking alcohol'.

V. 5.Page 644

Answer the following in one or two words.

A disease by excessive use of alcohol that leads to degeneration of liver.

In the questions given below, there are two statements marked as Assertion (A) and Reason (R). Read the statements and choose the correct option.

VI. 1.Page 644

Assertion (A): Opioids in small dosage are used to enhance respiratory activity.

Reason (R): Opioids bind to the specific opioid receptors present in the respiratory tract.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 2.Page 645

Assertion (A): Alcohol when taken along with narcotic drugs is extremely harmful.

Reason (R): Alcohol damages digestive system only.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 3.Page 645

Assertion (A): Tobacco contains a large number of chemicals including nicotine.

Reason (R): Nicotine stimulates adrenal gland which decreases blood pressure and heart rate.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 4.Page 645

Assertion (A): Cannabinoids are chemical compounds that activate cannabinoid receptors present principally in brain.

Reason (R): Cannabinoids are known for their effects on cardiovascular system of the body.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 5.Page 645

Assertion (A): Heroin is also called smack.

Reason (R): Heroin is an opium alkaloid.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 6.Page 645

Assertion (A): LSD and marijuana are clinically used as analgesics.

Reason (R): LSD and marijuana suppress the brain function.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 7.Page 645

Assertion (A): Tobacco users face a high risk of lung cancer.

Reason (R): The polycyclic hydrocarbons in nicotine inhaled during smoking are carcinogenic.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 8.Page 645

Assertion (A): Dope test is used to estimate the level of blood alcohol by analysing the breath of persons drinking alcohol.

Reason (R): A drunken person usually feels tense and less talkative.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 9.Page 645

Assertion (A): Cannabis sativa is a powerful anti-depressant.

Reason (R): Hashish and Marijuana are derived from it.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VI. 10.Page 645

Assertion (A): Oxidation of alcohol in the cells produces water.

Reason (R): Excess water is excreted in large amount by the skin during heat elimination.

  • Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

  • Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

  • Assertion (A) is true but reason (R) is false.

  • Both assertion (A) and reason (R) are false.

VII. A.Page 645

Read the sources given and answer any four from the questions given below:

Addiction is a chronic compulsion for a habit-forming substance, behaviour or activity. Addiction results in physiological or psychological reliance which can have detrimental psychological, physical or social effects upon withdrawal or abstinence.

Withdrawal syndrome occurs in people who have developed physiological dependence on drugs or alcohol and who discontinue or reduce their use of it.

Sharing of needles for drug use can lead to the spread of infectious diseases among drug abusers. An example of such spread of infectious disease is the spread of HIV which causes AIDS in infected individuals.

  1. Which one of the following sentences is not true for addiction of a substance?
    1. Psychological dependence on the substance.
    2. When substance is not taken, body shows withdrawal symptoms.
    3. Addiction of a substance helps to boost energy levels of the body.
    4. Addiction leads to habit-forming behaviour.
  2. Which of the following is true for withdrawal symptoms?
    1. Occurs in adolescents who experiment with drugs.
    2. Occurs in people who try to discontinue the drug.
    3. It is a physiological effect of the body when drug is consumed in excess.
    4. It allows the body to eliminate drug from the body.
  3. How does sharing needles by drug users affect them?
    1. Increases the chance of getting AIDS.
    2. Increases the spread of infectious diseases.
    3. Both (a) and (b).
    4. Helps them to inject drugs at a lesser cost.
  4. If a person shows physiological dependence on a drug it means:
    (i) The drug must be habit-forming.
    (ii) Person will have psychological effect on discontinuing the drug.
    (iii) Person is sharing needles with fellow drug users.
    (iv) Person will get AIDS with time.
    Choose the correct answer from the options given below.
    1. (i) and (ii)
    2. (iii) and (iv)
    3. (i), (ii) and (iii)
    4. (i) and (iii)
VII. B.Page 646

Read the sources given and answer any four from the questions given below:

Alcohol is rapidly absorbed in the body tissues as it does not need to be digested. It gets absorbed through the lining of stomach and intestine and enters the blood within two minutes of being swallowed. In no time it reaches all the body cells, where its oxidation begins immediately. As the cells oxidise alcohol, a large amount of heat is produced.

This excess heat by the body is carried by the blood. This raises the temperature of blood and leads to increased circulation towards the skin for dissipation of heat. The skin turns rosy and the person may get a false impression of warmth. Actually, as the blood is directed towards the skin, the supply of blood to internal organs is reduced bringing a fall in their temperature.

Alcohol has no value as a food as the energy released is not used in any life processes.

Alcohol affects the central nervous system. Alcohol is a depressant and not a stimulator as many people think.

  1. What happens to alcohol in the body?
    (i) Alcohol gets absorbed in stomach lining.
    (ii) Alcohol gets oxidised in the cells.
    (iii) Alcohol produces a large amount of heat.
    (iv) Alcohol stimulates a number of body organs.
    Choose the correct answer from the options given below.
    1. (i), (ii) and (iv)
    2. (i), (ii) and (iii)
    3. (ii), (iii) and (iv)
    4. (i), (iii) and (iv)
  2. Which of the following statements is not true about alcohol in the body?
    1. Alcohol does not get digested in the body.
    2. Alcohol enters the blood within minutes of consuming.
    3. Alcohol reaches the kidneys and is quickly flushed out through urine.
    4. Alcohol depresses the body systems.
  3. Which of the following systems does alcohol affect drastically in the body?
    1. Digestive system
    2. Circulatory system
    3. Central nervous system
    4. Skin
  4. The person feels warm after consuming alcohol because:
    1. the skin turns rosy and warm
    2. of increased circulation of blood towards skin
    3. of increased circulation of blood to internal organs
    4. of oxidation of alcohol

B. SUBJECTIVE QUESTIONS Very short answer type questions (1 mark)

I. 1.Page 648

What is the peroid of adolescence in girls or boys?

I. 2.Page 648

What is another term given to habit forming drugs?

I. 3.Page 648

Name a natural opiate method?

I. 4.Page 648

Name two synthetic opiates?

I. 5.Page 648

The plant from which opium is exracted.

I. 6.Page 648

Which are two main drugs derived from opium?

I. 7.Page 648

A synthetic compound prepared from morphine by acetylation.

I. 8.Page 648

Give scientific name of hemp plant from which cannabinoids are extracted.

I. 9.Page 648

Which is the main system the cannabinoids act on?

I. 10.Page 648

List 5 important withdrawal symptoms of drugs. 

I. 11.Page 648

On which system does cocaine interfere with for transporting neurotransmitter?

I. 12.Page 648

Name the stimulant present in tea and coffee.

I. 13.Page 648

Which drugs are taken by students to keep them awake and by weight watchers to reduce appetite?

I. 14.Page 648

Name a few hallucinogenic drugs.

I. 15.Page 648

What is source of drug mescaline?

I. 16.Page 648

What are barbiturates?

I. 17.Page 648

What are tranquillisers?

I. 18.Page 648

Which alcohol is used as drinking alcohol?

I. 19.Page 648

Name the term given for chronic dependence on alcohol.

I. 20.Page 648

How soon is alcohol absorbed in the body?

I. 21.Page 648

Give the food value of alcohol.

I. 22.Page 648

People feel very jubilant after taking alcohol. What is its effect on the body and on what system?

I. 23.Page 648

What is the efect of alcohol on cerebellum?

I. 24.Page 648

What is a fatty liver syndrome?

I. 25.Page 648

Name the condition that liver can lead to due to continued use of alcohol and degeneration of liver.

I. 26.Page 649

What is the meaning of the term increased reaction time?

I. 27.Page 649

If valium is taken along with alcohol, what is the effect on body?

I. 28.Page 649

Which type of alcohol is used for external and should not be used for drinking?

I. 29. (i)Page 649

From where is LSD obtained?

I. 29. (ii)Page 649

What is the full form of LSD.

I. 30.Page 649

Name a hallucinogen obtained from certain mushrooms.

Short answer type questions (2 marks)

II. 1.Page 649

What is drug addiction?

II. 2.Page 649

How do barbiturates affect the body?

II. 3.Page 649

What is the effect of LSD on human body?

II. 4.Page 649

Name the plant from where opium is derived.

II. 5.Page 649

Which other derivatives of opium are also used as drugs?

II. 6.Page 649

Which plant and plant parts are used for obtaining cannabinoids?

II. 7.Page 649

What are the effects of hallucinogens on the body?

II. 8.Page 649

The plant that is used to obtain cocaine.

II. 9.Page 649

What kinds of drugs reduce anxiety and are used as sedatives?

II. 10.Page 649

What are barbiturates?

II. 11.Page 649

Which drugs are used as tranquillisers?

II. 12.Page 649

What are psychedelic drugs?

II. 13.Page 649

Name a few hallucinogenic drugs.

II. 14.Page 649

How does alcohol affect liver cells?

II. 15.Page 649

Give names of a few beverages containing alcohol.

II. 16.Page 649

How does alcoholism affect the family?

II. 17.Page 649

Is alcohol a stimulant or depressant? Justify.

II. 18.Page 649

What is dealcoholism?

Short answer type questions (3 marks)

III. 1.Page 649

Give examples of a few stimulating drugs and their effects on the body.

III. 2. (i)Page 649

List some major factors leading to drug addiction.

III. 2. (ii)Page 649

How can drug addicts be helped to lead a normal healthy life?

III. 3.Page 649

What are opiates and their effect on body?

III. 4. (i)Page 649

List a few withdrawal symptoms when drug is taken away and not given to the person.

III. 4. (ii)Page 649

What is emotional or psychological addiction?

III. 5. (i)Page 649

What are hallucinogens? Why are they called psychedelic drugs?

III. 5. (ii)Page 649

Which types of drugs are used for children to stay awake and why?

IV. 1.Page 649

Differentiate between the following:

Amphetamines and sedative drugs

IV. 2.Page 649

Differentiate between the following:

Opioids and Cannabinoids

IV. 3.Page 649

Differentiate between the following:

Methyl alcohol and ethyl alcohol

IV. 4.Page 649

Differentiate between the following:

Hallucinogens and sedatives

Long answer type questions (5 marks)

V. 1.Page 649

How do narcotic drugs affect the body?

V. 2.Page 649

What are derivatives of drugs? How do they affect the body?

V. 3. (i)Page 649

List short-term of alcoholism.

V. 3. (ii)Page 649

List long-term effects of alcoholism.

V. 4. (i)Page 649

How does alcoholism affect an individual?

V. 4. (ii)Page 649

How does alcoholism affect the family?

V. 4. (iii)Page 649

How does alcoholism affect the society?

V. 5.Page 649

Why is it advised not to drive after taking alcohol?

V. 6.Page 649

List a few factors that lead to drug addiction.

V. 7. (i)Page 649

What is deaddiction?

V. 7. (ii)Page 649

Why does deaddiction take time?

E. BOARD QUESTIONS 1 mark

1.Page 651

Opium is obtained from ______.

  • Papaver somniferum

  • Cannabis sativa

  • Erythroxylum cocа

  • Datura metel

2.Page 651

The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:

NACO

3.Page 651

Give one difference between the following pairs:

Sources of Opioids and Cannabinoids

2 marks

1.Page 651

List four reasons for drug addiction.

2.Page 651

List four effects of alcoholism on human health.

Solutions for 11: Adolescent Issues: Alcoholism and Drugs

EXERCISES
Sarita Aggarwal solutions for Biology [English] Class 12 ISC chapter 11 - Adolescent Issues: Alcoholism and Drugs - Shaalaa.com

Sarita Aggarwal solutions for Biology [English] Class 12 ISC chapter 11 - Adolescent Issues: Alcoholism and Drugs

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