Selina solutions for Concise Biology [English] Class 6 ICSE chapter 7 - Health and Hygiene [Latest edition]

 Put a tick mark (✓) against the correct alternative in the following statement:

Malaria is caused by:

Put a tick mark (✓) against the correct alternative in the following statement:

Deficiency of calcium causes

Put a tick mark (✓) against the correct alternative in the following statement:

 Hay fever and asthma are

Put a tick mark (✓) against the correct alternative in the following statement:

 Cataract is a disease of:

Put a tick mark (✓) against the correct alternative in the following statement:

Infectious diseases can be prevented by:

Put a tick mark (✓) against the correct alternative in the following statement:

Which one of the following is a genetic disease?

Which one of the following is a degenerative disease?

Put a tick mark (✓) against the correct alternative in the following statement:

Pellagra is one disease caused by the deficiency of: 

Put a tick mark (✓) against the correct alternative in the following statement:

Deficiency of Iodine in one’s food can cause:

Put a tick mark (✓) against the correct alternative in the following statement:

 Which one of the following mineral deficiency diseases can be cured by eating a diet which include green leafy vegetables, banana, cereals, egg-yolk?

Put a tick mark (✓) against the correct alternative in the following statement:

Which one of the following vitamin deficiency diseases can be cured by eating a diet which includes carrot, yellow fruits, vegetables, butter, milk, fish? 

Put a tick mark (✓) against the correct alternative in the following statement:

 Which one of the following is a communicable disease?

What is a non-communicable disease?

What is a deficiency disease?

What are communicable diseases? How can they be avoided?

Biting nails should be strictly avoided. Give reason.

Regular exercise and proper rest is a must. Give reason

Children eating more of fast food tend to suffer from obesity (overweight). Comment

How can we control spreading of diseases by mosquitoes and houseflies?

Name the following: 

 A bacterial disease caused due to contaminated water

Name the following: 

A disease caused due to Plasmodium

Name the following: 

 A disease caused due to the bite of female Culex mosquito

Name the following: 

 A viral disease spread by the bite of a dog

Name the following: 

Two diseases caused due to deficiency of protein in the diet of a child

Name the following: 

Any three water-borne disease

Name the following: 

 A viral disease caused due to unhealthy sexual contact

Name the following: 

 A disease caused due to choking of coronary artery 

 Write a short (1-2 sentences) note on the following: Disease

 Write a short (1-2 sentences) note on the following: Immunisation

 Write a short (1-2 sentences) note on the following: Pathogens

 Write a short (1-2 sentences) note on the following: Allergy

 Write a short (1-2 sentences) note on the following: AIDS

Fill in the blanks by selecting suitable words given below:

Anaemia is caused due to the deficiency of ______.

Fill in the blanks by selecting suitable words given below:

Deficiency of Vitamin D causes ______ in children.

Fill in the blanks by selecting suitable words given below:

Deficiency of iodine in the diet may cause ______.

Fill in the blanks by selecting suitable words given below:

Kwashiorkor is caused due to the deficiency of ______.

Fill in the blanks by selecting suitable words given below:

Diabetes is caused due to undersecretion of ______.

Fill in the blanks by selecting suitable words given below:

 Haemophilia is a disease caused due to slow ______ of the blood.

 Find the odd one out:

 Find the odd one out:

 Find the odd one out:

 Find the odd one out:

 Fill in the blank in the following table: 

Given below is a crossword puzzle. Read the clues across and clues down, and fill up the blank squares. Check up your performance with the correct solution given at the end.

Clues across

1. Category of pathogen that causes diseases, like common cold and mumps.

5. This is the vaccine for preventing tuberculosis.

6. An organ usually affected by tuberculosis

7. Jumbled spelling of one of the most common insect which visits our exposed foods and contaminates them.

8. Cover this part of your body by a handkerchief while sneezing to prevent droplet infection to others.

9. These may readily grow in your hair, if you do not wash it regularly.

10. A disease that weakens body’s defence system against infections. 

Clues down

1. Germ or germ-substance introduced into the body to prevent occurrence of an infectious disease.

2. A disease caused by an infected dog, and which affects the central nervous system.

3. A disease in which the eyes, the skin and the urine turn yellow.

4. The disease pertussis is popularly known as whooping 

Describe the ways in which communicable diseases are transmitted through various indirect methods

List 3 ways by which you should keep your environment clean

Name the methods in which vaccine’s are prepared, giving the name of one disease for which each type of vaccine is used

Multiple choice questions. Tick (✓) the correct choice:

 Which of the following is a disease caused by bacteria? 

Multiple choice questions. Tick (✓) the correct choice:

Which of the following is not a viral disease? 

Multiple choice questions. Tick (✓) the correct choice:

Ringworm is a disease caused by

Multiple choice questions. Tick (✓) the correct choice:

Kwashiorkor is caused by

Fill in the blanks:

Over-eating causes a disease called ______.

Fill in the blank:

Food poisoning is caused by ______.

Fill in the blank:

One of the diseases caused by protozoa is ______.

Find the odd one out, giving reason:

Define the following:

Diseases

Define the following:

Malnutrition 

Two diseases each caused by bacteria, protozoa and virus.

Organism which causes malaria

Cause of obesity.

List the causes of diseases

What are deficiency diseases?

Differentiate between undernutrition and malnutrition

Multiple choice questions. Tick (✓) the correct choice:

 Kwashiorkor is a disease caused by

Multiple choice questions. Tick (✓) the correct choice:

Deficiency of vitamin C causes

Multiple choice questions. Tick (✓) the correct choice:

Deficiency of vitamin K can cause

Fill in the blanks:

Protruding belly is a symptom noticed in ______.

Fill in the blanks:

The disease kwashiorkor results from the deficiency of ______.

Fill in the blanks:

The mineral ______ is responsible for tooth decay.

Find the odd one out, giving reasons:

Find the odd one out, giving reasons:

Name the following:

Three vitamin-deficiency diseases.

Name the following:

Three mineral-deficiency diseases.

Mention the food constituents which may be lacking in one’s diet, in case of the following:

A child having rickets.

Mention the food constituents which may be lacking in one’s diet, in case of the following:

A person suffering from scurvy.

Mention the food constituents which may be lacking in one’s diet, in case of the following:

A person suffering from beri-beri.

Mention the food constituents which may be lacking in one’s diet, in case of the following:

A child suffering from kwashiorkor.

Mention the food constituents which may be lacking in one’s diet, in case of the following:

A person suffering from poor eyesight.

Mention the food constituents which may be lacking in one’s diet, in case of the following:

A person suffering from anaemia.

 Match the items in Column A with those in Column B:

What is meant by PEM?

Name the diseases caused by PEM.

Give the symptoms of kwashiorkor

Give the symptoms of marasmus.

Why should we not eat polished rice?

 Multiple choice questions. Tick (✓) the correct choice:

Which of the following diseases is spread through coughing and sneezing?

 Multiple choice questions. Tick (✓) the correct choice:

Which of the following diseases is transmitted by a carrier?

 Multiple choice questions. Tick (✓) the correct choice:

Which of the following diseases is spread through infected rats?

Multiple choice questions. Tick (✓) the correct choice:

Which of the following is a non-infectious disease?

Multiple choice questions. Tick (✓) the correct choice:

A disease spread by the bite of a mad dog is

Define the following: Pathogen

Define the following: Vector

Define the following: Droplet infection

Define the following: Infectious diseases

Mention the causal organisms of the following disease: Cholera

Mention the causal organisms of the following disease: Tuberculosis

Mention the causal organisms of the following disease: Common cold

Mention the causal organisms of the following disease: Chickenpox

Mention the causal organisms of the following disease: Typhoid

Mention the causal organisms of the following disease: Polio

Mention the causal organisms of the following disease: Rabies

What are communicable diseases?

Name three communicable diseases.

List the different ways by which communicable diseases are transmitted

Differentiate between communicable and non-communicable diseases.

Multiple choice questions. Tick (✓ ) the correct choice:

Malfunctioning of pancreas causes

Multiple choice questions. Tick (✓ ) the correct choice:

 First vaccine was produced by

Multiple choice questions. Tick (✓ ) the correct choice:

Cataract is a disease of the

Fill in the blank:

The disease caused by the bite of a mad dog is ______.

Fill in the blank:

Diseases of heart and kidney are due to ______ __ ____ ______.

Fill in the blank:

Uremia is caused due to the malfunctioning of ______.

 Find the odd one out, giving reasons:

Define the following: Vaccination

Define the following: Immunisation

Define the following: Immunity

Define the following: Vaccine

Define the following: Pathogen

Define the following: Atherosclerosis

Write, in brief, about the following: Fever

Write, in brief, about the following: Allergy

Write, in brief, about the following: First-aid measures in case of cuts, burns, bites and stings.

What would you do to lead a healthy life?

What steps would you take to prevent and control diseases?

Mention the contributions of Edward Jenner

Mention the contributions of Louis Pasteur

What is diabetes?

What are the symptoms or diabetes?

What is atherosclerosis?

Name the organs which are affected by atherosclerosis?

How does vaccination prevent diseases?

Which of the following statements are true (T) and which ones are false (F)? Mark T or F:

AIDS is caused by a bacterium.

Which of the following statements are true (T) and which ones are false (F)? Mark T or F:

Sneezing is an example of droplet infection.

Which of the following statements are true (T) and which ones are false (F)? Mark T or F:

Malaria is a vector-borne disease.

Which of the following statements are true (T) and which ones are false (F)? Mark T or F:

Atherosclerosis is a disease of the liver.

Which of the following statements are true (T) and which ones are false (F)? Mark T or F:

Filariasis is caused by worms.

Give differences between the following: First degree burn and second degree burn

Give the first aid measures in case of second degree burns.

Name three commonly used vaccines.

How vaccination helps to prevent diseases?

Why should you not allow water to stagnate near your house?

 Crossword Puzzle

Down

1. A disease caused due to the bite of a mad dog. (6)
2. Kwashiorkor and marasmus are caused due to the deficiency of this food component. (7)
3. A disease causing bleeding gums. (6)

Across

4. A disease due to deficiency of vitamin D. (7)
5. Diabetes is caused due to deficiency of this hormone. (7)
6. The deficiency of this mineral causes anaemia. (4)

Obesity can lead to many problems. Name them.

What does deficiency of carbohydrates lead to?

What are antibiotics?

Who discovered the first antibiotic?

Give examples of diseases caused by: Fungus

Give examples of diseases caused by: Insect bite

Give examples of diseases caused by: Ingesting infected food and water

Give examples of diseases caused by: Pollution/allergy

Give examples of diseases caused by: Worms

Name two diseases caused by animal bites

Name few contact infections.

Name few contact infections.

Name few vectors and diseases caused by them

Name the vitamin and mineral whose deficiency causes rickets

Name the nutrient lacking in ones diet it a person suffers from: Haemorrhage

Name the nutrient lacking in ones diet it a person suffers from: Dehydration

Name the nutrient lacking in ones diet it a person suffers from: Paralysis

Name the nutrient lacking in ones diet it a person suffers from: Tooth decay

Name the nutrient lacking in ones diet it a person suffers from: Skin diseases

Who gave the ‘germ theory of disease’?

How can microorganisms enter our body?

What is conjunctivitis?

Name few diseases which are transmitted by air.

What are degenerative diseases?

Why do degenerative diseases occur?

Name few diseases caused by malfunctioning of body organs.

Which body part produces insulin?

Which body part produces insulin?

Name a disease which causes opaque eye lens and hence blindness

What is rabies?

What are antibodies?

 Fill in the blank:

Malfunctioning of ______ can lead to accumulation of toxic substances in the body.

 Fill in the blank:

Lack of insulin may lead to ______.

 Fill in the blank:

A ______ is opposite to health.

 Fill in the blank:

Intake of inadequate or excess food or unbalanced diet leads to ______.

 Fill in the blank:

Diseases due to infection by microorganisms are called ______ ______.

 Fill in the blank:

______ ______ proved that microbes cause diseases.

 Fill in the blank:

Inflammation of joints result in ______.

Give a brief note on body’s natural defence mechanism to overcome diseases

List few precautions taken to maintain personal hygiene and cleanliness