{"id":724382,"date":"2024-07-05T11:03:29","date_gmt":"2024-07-05T05:33:29","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=724382"},"modified":"2024-11-04T13:40:23","modified_gmt":"2024-11-04T08:10:23","slug":"class-9-science-why-do-we-fall-ill-mcqs","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/mcqs\/class-9-science-why-do-we-fall-ill\/","title":{"rendered":"Class 9 Science Why do we fall ill MCQs"},"content":{"rendered":"

In the chapter “Why Do We Fall Ill?<\/strong>” from Class 9 Science, students delve into the reasons behind illnesses and the measures to prevent them. This topic is an essential part of the curriculum, as it educates young learners about the various types of diseases and how they impact human health. The chapter explains how illnesses can be caused by tiny, invisible germs or by poor health practices and unfavorable living conditions.<\/p>\n

The section on Class 9 Science Why do we fall ill mcq<\/strong> includes questions about infectious and non-infectious diseases. Infectious diseases are those that can spread from one person to another, such as colds and flu. Non-infectious diseases, like diabetes and heart conditions, do not spread from person to person but can be influenced by genetics and lifestyle choices. The curriculum also highlights how our environment and daily habits can play a significant role in either promoting health or contributing to disease.<\/p>\n

The multiple-choice questions (MCQs) provided under Class 9 Science Why do we fall ill mcq<\/strong> are designed to test students’ understanding of how diseases are transmitted, how the body defends itself against pathogens, and effective strategies for disease prevention. These questions help students apply their knowledge in practical scenarios, enhancing their ability to make informed decisions about their health and well-being.<\/p>\n

Why do we fall ill Class 9 MCQs<\/h2>\n

Ques. Which disease is caused by a protozoan?<\/strong><\/p>\n

a) Typhoid<\/p>\n

b) Common Cold<\/p>\n

c) AIDS<\/p>\n

d) Malaria<\/p>\n

Answer: d)<\/strong><\/p>\n

Ques. Which of these diseases is caused by fungi?<\/strong><\/p>\n

a) Skin infection<\/p>\n

b) Cold and cough<\/p>\n

c) AIDS<\/p>\n

d) Malaria<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. What type of disease is a headache?<\/strong><\/p>\n

a) Air-borne<\/p>\n

b) Acute<\/p>\n

c) Infectious<\/p>\n

d) Chronic<\/p>\n

Answer: b)<\/strong><\/p>\n

Ques. What are diseases caused by microbes called?<\/strong><\/p>\n

a) Non-infectious<\/p>\n

b) Acute<\/p>\n

c) Chronic<\/p>\n

d) Infectious<\/p>\n

Answer: d)<\/strong><\/p>\n

Also Check: Why Do we Fall Ill Class 9 Extra Questions Science Chapter 13<\/a><\/strong><\/em><\/p>\n

Ques. Which disease is caused by bacteria?<\/strong><\/p>\n

a) Influenza<\/p>\n

b) Common cold<\/p>\n

c) Anthrax<\/p>\n

d) AIDS<\/p>\n

Answer: c)<\/strong><\/p>\n

Ques. Which of these diseases is not infectious?<\/strong><\/p>\n

a) Cancer<\/p>\n

b) Typhoid<\/p>\n

c) Malaria<\/p>\n

d) Cholera<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. Antibiotics work against:<\/strong><\/p>\n

a) Elephantiasis<\/p>\n

b) Virus<\/p>\n

c) Bacteria<\/p>\n

d) Parasites<\/p>\n

Answer: c)<\/strong><\/p>\n

Ques. Which disease can an infected mother transmit to her baby through breastfeeding?<\/strong><\/p>\n

a) AIDS<\/p>\n

b) Malaria<\/p>\n

c) Kala-azar<\/p>\n

d) Elephantiasis<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. Who first tried the method of immunization?<\/strong><\/p>\n

a) Edward Jenner<\/p>\n

b) Robert Hooke<\/p>\n

c) Louis Hook<\/p>\n

d) Louis Pasteur<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. Which protozoan causes kala-azar?<\/strong><\/p>\n

a) Leishmania<\/p>\n

b) Ascaris<\/p>\n

c) Trypanosoma<\/p>\n

d) Plasmodium<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. Identify the odd one out:<\/strong><\/p>\n

a) Diphtheria<\/p>\n

b) Cancer<\/p>\n

c) Tetanus<\/p>\n

d) Whooping cough<\/p>\n

Answer: b)<\/strong><\/p>\n

Also Check: Why Do we Fall ill Class 9 Notes Science Chapter 13<\/a><\/strong><\/em><\/p>\n

Ques. Which of these diseases are acute?<\/strong><\/p>\n

a) Tuberculosis and Cancer<\/p>\n

b) Cancer and Common cold<\/p>\n

c) Common cold and Viral fever<\/p>\n

d) Tuberculosis and Viral fever<\/p>\n

Answer: c)<\/strong><\/p>\n

Ques. Which disease is transmitted by sexual contact?<\/strong><\/p>\n

a) Malaria<\/p>\n

b) Syphilis<\/p>\n

c) Kala-azar<\/p>\n

d) Elephantiasis<\/p>\n

Answer: b)<\/strong><\/p>\n

Ques. The AIDS virus cannot be transmitted by:<\/strong><\/p>\n

a) Sexual contact<\/p>\n

b) Blood transfusion<\/p>\n

c) Breastfeeding<\/p>\n

d) Hugs and handshakes<\/p>\n

Answer: d)<\/strong><\/p>\n

Ques. Which disease affects the human brain?<\/strong><\/p>\n

a) Malaria<\/p>\n

b) Dengue fever<\/p>\n

c) Jaundice<\/p>\n

d) Japanese encephalitis<\/p>\n

Answer: d)<\/strong><\/p>\n

Ques. Larynx is called:<\/strong><\/p>\n

a) Voice box<\/p>\n

b) Respiratory organ<\/p>\n

c) Music box<\/p>\n

d) None of these<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. Which is a congenital disease?<\/strong><\/p>\n

a) Deficiency disease<\/p>\n

b) Present from birth<\/p>\n

c) Spread from person to person<\/p>\n

d) Occurs during a lifetime<\/p>\n

Answer: b)<\/strong><\/p>\n

Ques. Which is not a viral disease?<\/strong><\/p>\n

a) Dengue<\/p>\n

b) AIDS<\/p>\n

c) Typhoid<\/p>\n

d) Influenza<\/p>\n

Answer: c)<\/strong><\/p>\n

Which is not a bacterial disease?<\/strong><\/p>\n

a) Cholera<\/p>\n

b) Tuberculosis<\/p>\n

c) Anthrax<\/p>\n

d) Influenza<\/p>\n

Answer: d)<\/strong><\/p>\n

Also Check: NCERT Solutions for Class 9 Science Chapter 13 Why do we fall ill<\/a><\/strong><\/em><\/p>\n

Ques. Which are examples of communicable diseases?<\/strong><\/p>\n

a) Diabetes<\/p>\n

b) Arthritis<\/p>\n

c) Cancer<\/p>\n

d) Tuberculosis<\/p>\n

Answer: d)<\/strong><\/p>\n

Ques. Sleeping sickness is caused by which protozoan?<\/strong><\/p>\n

a) Trypanosoma<\/p>\n

b) Euglena<\/p>\n

c) Plasmodium<\/p>\n

d) Amoeba<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. Which disease is not caused by bacteria?<\/strong><\/p>\n

a) Typhoid<\/p>\n

b) Anthrax<\/p>\n

c) Tuberculosis<\/p>\n

d) Malaria<\/p>\n

Answer: d)<\/strong><\/p>\n

Ques. Which has a long-term effect on health?<\/strong><\/p>\n

a) Common cold<\/p>\n

b) Chickenpox<\/p>\n

c) Chewing tobacco<\/p>\n

d) Stress<\/p>\n

Answer: c)<\/strong><\/p>\n

Ques. Which microorganism causes acne?<\/strong><\/p>\n

a) H1N1 virus<\/p>\n

b) Trypanosoma<\/p>\n

c) Leishmania<\/p>\n

d) Staphylococcus<\/p>\n

Answer: d)<\/strong><\/p>\n

Ques. What type of disease is caused by microbes?<\/strong><\/p>\n

a) Infectious<\/p>\n

b) Non-infectious<\/p>\n

c) Acute<\/p>\n

d) Chronic<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. Which disease is caused by a worm?<\/strong><\/p>\n

a) Measles<\/p>\n

b) Poliomyelitis<\/p>\n

c) Tuberculosis<\/p>\n

d) Elephantiasis<\/p>\n

Answer: d)<\/strong><\/p>\n

Ques. Which is not important for individual health?<\/strong><\/p>\n

a) Living in a clean place<\/p>\n

b) Good economic condition<\/p>\n

c) Social equality and harmony<\/p>\n

d) Living in a large, well-furnished house<\/p>\n

Answer: d)<\/strong><\/p>\n

Ques. After entering the human body, where does the malarial parasite go?<\/strong><\/p>\n

a) Liver, then RBCs<\/p>\n

b) Stomach, then RBCs<\/p>\n

c) Liver, then WBCs<\/p>\n

d) Stomach, then salivary glands<\/p>\n

Answer: a)<\/strong><\/p>\n

Ques. Why should we not allow mosquitoes to breed around us?<\/strong><\/p>\n

a) They multiply fast and cause pollution<\/p>\n

b) They are vectors for many diseases<\/p>\n

c) They bite and cause skin diseases<\/p>\n

d) They are not important insects<\/p>\n

Answer: b)<\/strong><\/p>\n

Ques. What is the literal meaning of disease?<\/strong><\/p>\n

a) Being happy<\/p>\n

b) Being unaware<\/p>\n

c) Being uncomfortable<\/p>\n

d) Being uncomplicated<\/p>\n

Answer: c)<\/strong><\/p>\n

Also Check: NCERT Exemplar Solutions for Class 9 Science Chapter 13 Why Do We Fall ill<\/a><\/strong><\/em><\/p>\n

Ques. Which bacteria cause peptic ulcers?<\/strong><\/p>\n

a) Helicobacter chlolecystus<\/p>\n

b) Helicobacter salomonis<\/p>\n

c) Helicobacter pylori<\/p>\n

d) Helicobacter hepaticus<\/p>\n

Answer: c)<\/strong><\/p>\n

Ques. What are the main symptoms of HIV-AIDS due to?<\/strong><\/p>\n

a) HIV alone causes all infections<\/p>\n

b) HIV releases a poison in the body<\/p>\n

c) HIV damages the immune system<\/p>\n

d) HIV attacks the nervous system<\/p>\n

Answer: c)<\/strong><\/p>\n

Ques. How long do acute diseases last?<\/strong><\/p>\n

a) Long period<\/p>\n

b) Few hours<\/p>\n

c) Short period<\/p>\n

d) Life long<\/p>\n

Answer: c)<\/strong><\/p>\n

Ques. Which is a chronic disease?<\/strong><\/p>\n

a) Cold<\/p>\n

b) Diabetes<\/p>\n

c) Influenza<\/p>\n

d) Typhoid<\/p>\n

Answer: b)<\/strong><\/p>\n

Ques. TAB-vaccine is used for immunity against typhoid. What does TAB stand for?<\/strong><\/p>\n

a) Typhoid-Paratyphoid A and B Vaccine<\/p>\n

b) Typhoid-Partialtyphoid A and B Vaccine<\/p>\n

c) Typhoid-Peroxytyphoid A and B Vaccine<\/p>\n

d) Typhoid-Pertyphoid A and B Vaccine<\/p>\n

Answer: a)<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

In the chapter “Why Do We Fall Ill?” from Class 9 Science, students delve into the reasons behind illnesses and […]<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Why do we fall ill MCQs","_yoast_wpseo_title":"Class 9 Science MCQs Chapter 13 Why Do We Fall Ill | Infinity Learn","_yoast_wpseo_metadesc":"Explore key MCQs for Class 9 Science on 'Why Do We Fall Ill'. Perfect for exam prep and understanding health concepts.","custom_permalink":"mcqs\/class-9-science-why-do-we-fall-ill\/"},"categories":[11038],"tags":[],"table_tags":[],"acf":[],"yoast_head":"\nClass 9 Science MCQs Chapter 13 Why Do We Fall Ill | Infinity Learn<\/title>\n<meta name=\"description\" content=\"Explore key MCQs for Class 9 Science on 'Why Do We Fall Ill'. 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