Chapters
Chapter 7: Allergy
Selina solutions for Concise Biology Class 7 ICSE Chapter 7 Allergy Exercise Review questions
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.
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?
Selina solutions for Concise Biology Class 7 ICSE Chapter 7 Allergy Exercise Multiple choice questions
Put a tick mark (✓) against the correct alternative in the following statement:
Hay fever and asthma are
Deficiency diseases
Genetic diseases
Organic diseases
Allergy diseases
Put a tick mark (✓) against the correct alternative in the following statement:
Cataract is a disease of:
Ears
Nose
Eyes
Throat
Put a tick mark (✓) against the correct alternative in the following statement:
Infectious diseases can be prevented by:
Medicines
Proper food
Immunisation
Exercise
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following is a genetic disease?
Scurvy
Leukemia
Goitre
Haemophilia
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following is a degenerative disease?
Thalassemia
Beri-beri
Cataract
Diabetes
Put a tick mark (✓) against the correct alternative in the following statement:
Pellagra is one disease caused by the deficiency of:
Vit.B3
Vit.B1
Vit. C
Vit. D
Put a tick mark (✓) against the correct alternative in the following statement:
Deficiency of Iodine in one’s food can cause :
Beri-beri
Goitre
Scurvy
Pellagra
Selina solutions for Concise Biology Class 7 ICSE Chapter 7 Allergy Exercise Short answer questions, short answer questions
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?
Selina solutions for Concise Biology Class 7 ICSE Chapter 7 Allergy Exercise Short answer questions
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
Selina solutions for Concise Biology Class 7 ICSE Chapter 7 Allergy Exercise Short answer questions
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
Selina solutions for Concise Biology Class 7 ICSE Chapter 7 Allergy Exercise Short answer questions
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
Selina solutions for Concise Biology Class 7 ICSE Chapter 7 Allergy Exercise Long answer questions
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.
Chapter 7: Allergy
Selina solutions for Concise Biology Class 7 ICSE chapter 7 - Allergy
Selina solutions for Concise Biology Class 7 ICSE 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 Concise Biology Class 7 ICSE solutions in a manner that help students grasp basic concepts better and faster.
Further, we at Shaalaa.com provide 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 Concise Biology Class 7 ICSE 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.
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