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Chapters
1: Reproduction in Organisms
2: Sexual Reproduction in Flowering Plants
3: Human Reproduction
4: Reproductive Health-Problems and Strategies
Unit 2 – Genetics and Evolution
5: Principles of Inheritance and Variation
6: Chromosomes, Sex-Linked Inheritance and Human Genetic Disorders
7: Molecular Basis of Inheritance
8: Evolution-Origin of Life
9: Theory of Evolution and Evolution of Man
Unit 3 – Biology and Human Welfare
10: Human Health and Diseases
▶ 11: Adolescent Issues: Alcoholism and Drugs
12: Animal Breeding for Improvement in Food Production
13: Plant Breeding to Enhance Food Production
14: Microbes in Human Welfare
Unit 4 – Biotechnology
15: Biotechnology: Principles and Processes
16: Biotechnology and Its Applications
Unit 5 – Ecology and Environment
Chapter 17: Organisms and Populations
Chapter 18: Ecosystem
Chapter 19: Biodiversity and Conservation
Chapter 20: Environmental Issues
![Sarita Aggarwal solutions for Biology [English] Class 12 ISC chapter 11 - Adolescent Issues: Alcoholism and Drugs Sarita Aggarwal solutions for Biology [English] Class 12 ISC chapter 11 - Adolescent Issues: Alcoholism and Drugs - Shaalaa.com](/images/biology-english-class-12-isc_6:65d11b7ee3eb4277bbdac77874c6c42a.jpg)
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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.
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:
Which one of the following is a synthetic drug?
morphine
amphetamines
cocaine
charas
Which one of the following is not a derivative of opium?
morphine
codeine
heroin
cocaine
Amphetamines have the following effect on the body.
cause drowsiness
bring hallucinations
stimulate the body
depress the body
Which drugs are commonly called sleeping pills?
barbiturates
amphetamines
opiate narcotics
LSD
Which one of the following is a psychedelic drug?
opium
LSD
cocaine
morphine
Which one of the following drugs causes hallucinations?
LSD
caffeine
opium
amphetamines
Alcohol is a ______.
stimulant
depressant
barbiturate
amphetamine
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
Which one of the following is not true during excessive intake of alcohol?
decreased reaction time
hallucination
impaired judgement
lack of alertness
Which of the following is an opiate narcotic?
codeine
cocaine
caffeine
mescalin (heroin)
A natural plant product, used as a sedative.
cocaine
valium
heroin
caffeine
Which one of the following is obtained from the hemp plant, Cannabis sativa?
charas
cocaine
heroin
opium
Where does alcohol effect immediately after drinking?
Eyes
Auditory region
Liver
Central nervous system
Fill in the blanks
Less response of a drug to a specific dose with repeated use is called ______.
Caffeine is present in ______, ______, ______ and ______.
______ is taken by students as it gives a false feeling of alertness and awakefulness.
______ are commonly called sleeping pills.
Opium is obtained from the ______, plant with scientific name ______.
______ is chemically the drinking alcohol.
Alcohol is produced by the action of ______ on ______.
Severe degeneration of liver due to excessive intake of alcohol is called ______.
Fermented beverages like beer contain ______ content of alcohol.
Alcohol ______ the reaction time of an alcoholic.
State whether the following is true or false.
Morphine and codeine are obtained from opium.
State whether the following is true or false.
Amphetamines are used as sleeping pills as they depress the activity of central nervous system.
State whether the following is true or false.
Ethyl alcohol is used as an antifreeze in automobile radiators.
State whether the following is true or false.
Active ingredient in morphine is opium and is used to relieve pain.
State whether the following is true or false.
Alcohol is a stimulant and so feel happy and elated after taking it.
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 |
Answer the following in one or two words.
Answer the following in one or two words A white colourless and crystalline semi-synthetic opioid.
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.
Answer the following in one or two words.
A group of synthetic drugs often used as 'pep pills' to stimulate nervous system.
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'.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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. |
- Which one of the following sentences is not true for addiction of a substance?
- Psychological dependence on the substance.
- When substance is not taken, body shows withdrawal symptoms.
- Addiction of a substance helps to boost energy levels of the body.
- Addiction leads to habit-forming behaviour.
- Which of the following is true for withdrawal symptoms?
- Occurs in adolescents who experiment with drugs.
- Occurs in people who try to discontinue the drug.
- It is a physiological effect of the body when drug is consumed in excess.
- It allows the body to eliminate drug from the body.
- How does sharing needles by drug users affect them?
- Increases the chance of getting AIDS.
- Increases the spread of infectious diseases.
- Both (a) and (b).
- Helps them to inject drugs at a lesser cost.
- 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.
- (i) and (ii)
- (iii) and (iv)
- (i), (ii) and (iii)
- (i) and (iii)
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. |
- 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.- (i), (ii) and (iv)
- (i), (ii) and (iii)
- (ii), (iii) and (iv)
- (i), (iii) and (iv)
- Which of the following statements is not true about alcohol in the body?
- Alcohol does not get digested in the body.
- Alcohol enters the blood within minutes of consuming.
- Alcohol reaches the kidneys and is quickly flushed out through urine.
- Alcohol depresses the body systems.
- Which of the following systems does alcohol affect drastically in the body?
- Digestive system
- Circulatory system
- Central nervous system
- Skin
- The person feels warm after consuming alcohol because:
- the skin turns rosy and warm
- of increased circulation of blood towards skin
- of increased circulation of blood to internal organs
- of oxidation of alcohol
B. SUBJECTIVE QUESTIONS Very short answer type questions (1 mark)
What is the peroid of adolescence in girls or boys?
What is another term given to habit forming drugs?
Name a natural opiate method?
Name two synthetic opiates?
The plant from which opium is exracted.
Which are two main drugs derived from opium?
A synthetic compound prepared from morphine by acetylation.
Give scientific name of hemp plant from which cannabinoids are extracted.
Which is the main system the cannabinoids act on?
List 5 important withdrawal symptoms of drugs.
On which system does cocaine interfere with for transporting neurotransmitter?
Name the stimulant present in tea and coffee.
Which drugs are taken by students to keep them awake and by weight watchers to reduce appetite?
Name a few hallucinogenic drugs.
What is source of drug mescaline?
What are barbiturates?
What are tranquillisers?
Which alcohol is used as drinking alcohol?
Name the term given for chronic dependence on alcohol.
How soon is alcohol absorbed in the body?
Give the food value of alcohol.
People feel very jubilant after taking alcohol. What is its effect on the body and on what system?
What is the efect of alcohol on cerebellum?
What is a fatty liver syndrome?
Name the condition that liver can lead to due to continued use of alcohol and degeneration of liver.
What is the meaning of the term increased reaction time?
If valium is taken along with alcohol, what is the effect on body?
Which type of alcohol is used for external and should not be used for drinking?
From where is LSD obtained?
What is the full form of LSD.
Name a hallucinogen obtained from certain mushrooms.
Short answer type questions (2 marks)
What is drug addiction?
How do barbiturates affect the body?
What is the effect of LSD on human body?
Name the plant from where opium is derived.
Which other derivatives of opium are also used as drugs?
Which plant and plant parts are used for obtaining cannabinoids?
What are the effects of hallucinogens on the body?
The plant that is used to obtain cocaine.
What kinds of drugs reduce anxiety and are used as sedatives?
What are barbiturates?
Which drugs are used as tranquillisers?
What are psychedelic drugs?
Name a few hallucinogenic drugs.
How does alcohol affect liver cells?
Give names of a few beverages containing alcohol.
How does alcoholism affect the family?
Is alcohol a stimulant or depressant? Justify.
What is dealcoholism?
Short answer type questions (3 marks)
Give examples of a few stimulating drugs and their effects on the body.
List some major factors leading to drug addiction.
How can drug addicts be helped to lead a normal healthy life?
What are opiates and their effect on body?
List a few withdrawal symptoms when drug is taken away and not given to the person.
What is emotional or psychological addiction?
What are hallucinogens? Why are they called psychedelic drugs?
Which types of drugs are used for children to stay awake and why?
Differentiate between the following:
Amphetamines and sedative drugs
Differentiate between the following:
Opioids and Cannabinoids
Differentiate between the following:
Methyl alcohol and ethyl alcohol
Differentiate between the following:
Hallucinogens and sedatives
Long answer type questions (5 marks)
How do narcotic drugs affect the body?
What are derivatives of drugs? How do they affect the body?
List short-term of alcoholism.
List long-term effects of alcoholism.
How does alcoholism affect an individual?
How does alcoholism affect the family?
How does alcoholism affect the society?
Why is it advised not to drive after taking alcohol?
List a few factors that lead to drug addiction.
What is deaddiction?
Why does deaddiction take time?
E. BOARD QUESTIONS 1 mark
Opium is obtained from ______.
Papaver somniferum
Cannabis sativa
Erythroxylum cocа
Datura metel
The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:
NACO
Give one difference between the following pairs:
Sources of Opioids and Cannabinoids
2 marks
List four reasons for drug addiction.
List four effects of alcoholism on human health.
Solutions for 11: Adolescent Issues: Alcoholism and Drugs
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Sarita Aggarwal solutions for Biology [English] Class 12 ISC chapter 11 - Adolescent Issues: Alcoholism and Drugs
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