Dr. K. K. Gupta, Dr. Preeti Srivastava, Mary Anne Joseph solutions for कन्साइस बायोलॉजी [इंग्रजी] इयत्ता ७ आयसीएसई chapter 7 - Allergy [Latest edition]

Define the term “allergy”.

Name the inflammatory chemical released by the basophils causing skin reaction and construction of the bronchioles.

How the allergy-causing chemical is naturally removed from the body?

Match the items given under column I with those given under column II. 

Name any three routes of which allergens normally enter in our body.

What are allergens?

Name any three allergens.

Name the two tests generally used to diagnose allergy and describe any one of them.

Which test is mostly favoured for testing allergy, prick test, or blood test? Why? 

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?

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

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 : 

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.

Define the term “allergy”.

Name the inflammatory chemical released by the basophils causing skin reaction and construction of the bronchioles.

How the allergy-causing chemical is naturally removed from the body?

Name the following: 

A viral disease caused due to unhealthy sexual contact

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 caused by the bite of a dog

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

Disease

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

Immunisation 

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

Allergy

Write short (1-2 sentences) notes on the following: 

AID'S

Find the odd one out: 

Typhoid, cholera, jaundice, tuberculosis, tetanus.

Find the odd one out: 

Cold, AIDS, plague, malaria, measles.

Find the odd one out: 

Scurvy, rickets, haemophilia, pellagra, night blindness.

Find the odd one out: 

Proteins, carbohydrates, fats, minerals, cancer 

What is vaccination? 

Mention the four ways in which vaccines are prepared, giving the name of one disease for which each type of vaccine is used. 

Name the tests generally used to diagnose allergy and describe any one of them.