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Selina solutions for Class 7 Biology chapter 7 - Allergy

Selina Concise Biology - Middle School for Class 7 (2018-19 Session)

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Selina Selina Concise Biology - Middle School Class 7 (2018-19 Session)

Selina Concise Biology - Middle School for Class 7 (2018-19 Session)

Chapter 7: Allergy

Chapter 7: Allergy solutions [Page 0]

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. 

  Column A   Column B 
1 Dust allergy  a.  Nuts 
2 food allergy  b. Pollen 
3 Seasonal allergy  c.  Asthma

 

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

Name any three allergens. 

What are 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 ? 

Chapter 7: Allergy solutions [Page 0]

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

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

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

Cataract is a disease of:
(i)Ears
(ii) Nose
(iii) Eyes
(iv) Throat 

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

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

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

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

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

 Pellagra is one disease caused by the deficiency of:
(i) Vit.B3
(II) Vit.B1 
(iii) Vit. C
(iv) Vit. D

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

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

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

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

Chapter 7: Allergy solutions [Page 0]

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 ? 

Chapter 7: Allergy solutions [Page 0]

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   

Chapter 7: Allergy solutions [Page 0]

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

Chapter 7: Allergy solutions [Page 0]

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  

Chapter 7: Allergy solutions [Page 0]

What is vaccination ? 

 Mention the four ways in which vaccine’s 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. 

Chapter 7: Allergy

Selina Selina Concise Biology - Middle School Class 7 (2018-19 Session)

Selina Concise Biology - Middle School for Class 7 (2018-19 Session)

Selina solutions for Class 7 Biology chapter 7 - Allergy

Selina solutions for Class 7 Biology chapter 7 (Allergy) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Selina Concise Biology - Middle School for Class 7 (2018-19 Session) solutions in a manner that help students grasp basic concepts better and faster.

Further, we at shaalaa.com are providing such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 7 Biology chapter 7 Allergy are Concept of Allergy, Concept of Allergens - Dust, Pollen Grain, Mites, Strong Sunlight, Particular Food Items, Entry Routes of Allergens: Mouth, Nose, Skin, Symptoms of Allergic Reaction, Types of Allergies: Seasonal and Perennial, Concept for Precautions and Care for Prone to Allergies., Human Disease.

Using Selina Class 7 solutions Allergy exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 7 prefer Selina Textbook Solutions to score more in exam.

Get the free view of chapter 7 Allergy Class 7 extra questions for Biology and can use shaalaa.com to keep it handy for your exam preparation

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