Health and Hygiene ICSE Class-6th Concise Selina

Health and Hygiene ICSE Class-6th Concise Selina Biology Solutions Chapter-7.We Provide Step by Step Answer of Objective, True False , Fill in the blanks , Match the following , Short/Long Answer Type of Exercise-7 Health and Hygiene . Visit official Website  CISCE  for detail information about ICSE Board Class-6.

Health and Hygiene ICSE Class-6th Concise Selina Biology Solutions Chapter-7


Review Questions 

Multiple Choice Question

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1. Put a tick mark (✓) against the correct alternative in the following statements:

(a) Malaria is caused by:
(i) Bacteria
(ii) Protozoan
(iii) Fungi
(iv) Virus

Answer:

Protozoan

(b) Deficiency of calcium causes

(i) Poor growth of teeth and gums
(ii) Goitre
(iii) Anaemia
(iv) Polio

Answer:

Poor growth of teeth and gums

(c) Hay fever and asthma are
(i) Deficiency diseases
(ii) Genetic diseases
(iii) Organic diseases
(iv) Allergy diseases

Answer:

Allergy diseases

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PQ. Cataract is a disease of:

(i) Ears
(ii) Nose
(iii) Eyes
(iv) Throat

Answer:

Eyes

(d) Infectious diseases can be prevented by:
(i) Medicines
(ii) Proper food
(iii) Immunisation
(iv) Exercise

Answer:

Immunisation

(e) Which one of the following is a genetic disease?
(i) Scurvy
(ii) Leukemia
(lii) Goitre
(iv) Haemophilia

Answer:

Haemophilia

(f) Which one of the following is a degenerative disease?
(i) Thalassemia
(ii) Ben-ben
(iii) Cataract
(iv) Diabetes

Answer:

Thalassemia

(g) Pellagra is one disease caused by the deficiency of:

(i) Vit. B3
(ii) Vit. B1
(iii) Vit. C
(iv) Vit. D

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Answer:

Vit. B3

(h) Deficiency of Iodine in one’s food can cause:
(i) Ben-ben
(ii) Goitre
(iii) Scurvy
(iv) Pellagra

Answer:

Goitre

(i) Which one of the following mineral deficiency diseases can be cured by eating a diet which include green leafy vegetables, banana, cereals, egg-yolk?
(i) Goitre
(ii) Anaemia
(iii) Brittle bones
(iv) Pain in muscle contraction

Answer:

Anaemia

(j) Which one of the following vitamin deficiency diseases can be cured by eating a diet which includes carrot, yellow fruits, vegetables, butter, milk, fish ?
(i) Beri-beri
(ii) Dermatitis
(iii) Night blindness
(iv) Scurvy

Answer:

Night blindness

(k) Which one of the following is a communicable disease?

(i) Measles
(ii) Cancer
(iii) Heart stroke
(iv) Allergy

Answer:

Measles


Short Answer Questions 

Question 1(a).


What is a non-communicable disease ?
Answer:
The diseases which are caused due to improper functioning of the body organs e.g. diabetes, heart attack. They are not caused by germs and not transmitted from one to another.

Question 1(b).


What is a deficiency disease
Answer:
These disease are caused by lack of nutrients, vitamins, minerals as a anaemia, goitre.

Question 1(c)


What are communicable diseases ? How can they be avoided ?
Answer:
Those disease which spread from one person to another by the entry of microorganisms are known as communicable diseases. The disease-causing germs are called Pathogens. These disease can be avoided by proper vaccination, healthy food and hygenic surroundings.

Question 1(d).


Biting nails should be strictly avoided. Give reason.
Answer:
Nail biting may cause many disease as the dirt has many
bacteria causing diseases. Nails should be cut from time to time to save from diseases.

Question 1(e).


Regular exercise and proper rest is a must. Give reason.
Answer:
Regular exercise keeps our body strong and immune to many
diseases, rest refreshes our body.

Question 1(f).

 

Children eating more of fast food tend to suffer from obesity (overweight). Comment.
Answer:
Fast food like pizza, burger, patty, oily foods etc. have much carbohydrates and fats. Children eating these become more and more fat and gain weight soon as they do not do much of physical work.

Question 1(g).


How can we control spreading of diseases by mosquitoes and houseflies ?
Answer:
We can control spreading of diseases by mosquitoes and houseflies by using repellants, throwing garbage in covered bins, avoiding stagnation of water and checking breeding of these insects.


2. Name the following (Health and Hygiene )

(a) A bacterial disease caused due to contaminated water
Ans. A bacterial disease caused due to contaminated water Cholera.
(b) A disease caused due to Plasmodium
Ans. A disease caused due to Plasmodium Malaria.
(c) A disease caused due to the bite of female Culex mosquito
Ans. A disease caused due to the bite of female Culex mosquito
Elephantiasis.

(d) A viral disease spread by the bite of a dog
Ans. A viral disease spread by the bite of a dog Rabies/ Hydrophobia
(e) Two diseases caused due to deficiency of protein in the diet of a child.
Ans. Kwashiorkor and marasmus.
(f) Any three water-borne disease.
Ans. Amoebiasis, Cholera, Hepatitis A.
(g) A viral disease caused due to unhealthy sexual contact
Ans. A viral disease caused due to unhealthy sexual contact AIDS.
(h) A disease caused due to choking of coronary artery
Ans. A disease caused due to choking of coronary artery Atheraosclerosis.

3. Write short (1-2 sentences) notes on the following: Health and Hygiene ICSE Class-6th

Disease, immunisation, pathogen, allergy, AIDS.
Answer:

Disease:

Disease is a departure from normal health due to structural or functional disorder of the body. These may be due to deficiency of nutrients or malfunctioning of organs or genetic disorders, improper metabolic activity, or allergies, or cancer and mental illness as diabetes, haemophilia, leukemia, schizophrenia.

Immunisation:

It means, we make the body immune to certain diseases by introducing respective weakened germs into the body. Thus we develop resistance to the concerned disease this process is called immunisation. The germs or the material introduced into the body to make it resistant to the concerned disease is called vaccine. This produces antibodies in the body of the person and the person can be saved by these antibodies. The vaccine can be given by the injection or orally as polio drops, tap vaccine for typhoid, BCG vaccine for tuberculosis.

Pathogens: 
 
The germs that cause diseases to human beings and to other animals and plants are called pathogens. They spread the diseases from person to person or through the air or through the articles of the diseased persons. Pathogens may be different kinds of bacteria, viruses, fungi, protozoans or worms.

Allergy: Allergy is an unpredictable reaction to a particular substance. This type of substance is called allergen. Different people are allergic to different substances. A few common allergens are dust, spores, pollen, certain clothes, particular cosmetics, etc. The common areas of the body parts which are affected by allergies are skin, respiratory and digestive tracts. Asthma, eczema, diarrhoea, vomiting, nausea, etc. are some of the common allergic reactions.

AID’S (Acquired Immune Deficiency Syndrome):

It is a viral disease caused by the virus called HTV (Human immuno deficiency virus) This virus makes the defence mechanism of the human body veiy weak. The immune system in the body as W.B.C. becomes weak. Thus the person catches the infectious diseases very easily. This disease spreads through sexual contact as one of the partner may be carrier of the disease. It may spread through the blood transfusion and infected syringes, blades of the barbers, it may infect the developing baby through the blood by the mother. It is very deadly disease.

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