CBSE Class 9 Biology Why Do We Fall Ill Worksheet

CBSE Class 9 Biology Worksheet - Why Do We Fall Ill (3)

Worksheets have become an integral part of the education system. Worksheets are very critical for every student to practice his/ her concepts. Students, teachers and parents can download all CBSE educational material and extremely well prepared worksheets from this website. All revision worksheets, Sample papers, Question banks and easy to learn study notes for all classes and subjects have been prepared based on the latest guidelines sent by CBSE. All CBSE educational material is developed by our panel of teachers, have also been submitted by thousands of teachers and students. The study material has been carefully compiled by the best teachers in India. Worksheets have been submitted by teachers of various CBSE schools and also have been carefully developed keeping into consideration the latest CBSE syllabus.

VERY SHORT ANSWER QUESTIONS:

Q1. What is health?

Q2. Expand WHO.

Q3. What is disease?

Q4. How has WHO defined health?

Q5. Whom will you call disease free?

Q6. What do you mean by symptoms of a disease?

Q7. What is an acute disease?

Q8. Define chronic disease.

Q9. What is an infectious disease.?

Q10. Give one example each of diseases caused by bacteria and virus.

Q11. Expand HIV.

Q12. Name the target organ of Japanese encephalitis and AIDS virus.

Q13. Expand DPT.

Q14. What may be the symptoms of a disease when brain is infected?

Q15. Define vaccination.

Q16. Name any two modes of transmission of AIDS.

Q17. Name any two animals which transmit rabies to humans.

Q18. Give any two examples of viral diseases.

Q19. Name the disease in which:

a) a person fears from water b) yellowing of skin takes place

Q20. Name the causal organism as well as the vector of malaria.

SHORT ANSWER QUESTIONS:

Q1. Distinguish between acute and chronic diseases in two points.

Q2. Mention the type of causal organism of the following diseases:

T.B. , Malaria , Kala azar , measles

Q3. Which bacterium causes peptic ulcer? Who discovered it for the first time?

Q4. Mention any two protozoan diseases. Also name their causal organisms .

Q5. What is an antibiotic? Give 2 examples.

Q6. What is the principle of immunization?

Q7. Name any 2 diseases transmitted through vectors.

Q8. Why is it difficult to develop vaccines for some diseases?

Q9. Name such a vaccine , which saves the life of babies from three diseases.

Q10. What precautions would you take in your school to reduce incidence of infectious diseases?

Q11. Balanced diet is necessary for maintaining healthy body . Explain.

Q12. Our surrounding area should be free of stagnant water. Explain.

Q13. Why is AIDS considered a syndrome and not a disease?

Q14. Identify the target organ of :

a) hepatitis b) fits c) pneumonia d) fungus

Q15. Why do some children fall ill more frequently than others living in the same locality?

LONG ANSWER QUESTIONS:

Q1. Describe the various community issues that influence health.

Q2. Explain various modes of transmission of infectious diseases.

Q3. Explain the various general ways of preventing diseases.

Q4. Write a note on the principle of treatment .

Q5. Why is immune system essential for our health?

Please click the below link to access CBSE Class 9 Biology Worksheet - Why Do We Fall Ill (3)

Tags: 

 


Click to View or Download pdf file
Click for more Science Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

CBSE Online Training for Teachers 2020

It is clear that this pandemic has utterly disrupted an education system that many assert was already losing its relevance. Enhancing professional development digitally is a need in the times of COVID-19, where social distancing and remote interactions is the new...

CBSE Decision on Board Exam 2020

The Class 10 and 12 exams are cancelled, and results for both 10th and 12th would be declared by July 15 based on internal exams. CBSE Class 12 students would have the option to appear for the exams at a later date. CBSE has a scheme in which marks scored in past 3...

CBSE advisory on student marks

CBSE has issued a public advisory for all students to be careful from unscrupulous persons impersonating themselves as officers/officials of CBSE. These people have been contacting parents and have been telling them that they have access to student marks data for Board...

CBSE Reduced Syllabus Clarification

CBSE board has issued the following clarification relating to various news reports regarding reduction in syllabus and questions from the reduced syllabus during board exams. Please read below: It has come to notice of the Board through a section of media reports that...

Procedure for correction in Name and Date of Birth

Procedure for correction in Name and Date of Birth in CBSE records Name Change: Applications regarding changes in name or surname of candidates will be considered provided the changes have been admitted by the Court of law and notified in the Government Gazette before...

Board Exams Class 10 and 12 Notification by CBSE

Because of the prevailing condition of spread of COVID-19 pandemic in the country, special efforts are required for conducting examinations in a safe manner. As a number of students have shifted from the district of their school to some other district in the country,...

×
Studies Today