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Grade 9 Exam  >  Grade 9 Test  >  Test: Why Do We Fall Ill- 1 - Grade 9 MCQ

Why Do We Fall Ill- 1 - Free MCQ Practice Test with solutions, Grade 9


MCQ Practice Test & Solutions: Test: Why Do We Fall Ill- 1 (10 Questions)

You can prepare effectively for Grade 9 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Why Do We Fall Ill- 1". These 10 questions have been designed by the experts with the latest curriculum of Grade 9 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 10 minutes
  • - Number of Questions: 10

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Test: Why Do We Fall Ill- 1 - Question 1
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Identify the group among the following, which contains all bacterial diseases :

Detailed Solution: Question 1

Test: Why Do We Fall Ill- 1 - Question 2
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Choose the wrong statement:

Detailed Solution: Question 2

Peptic ulcers were caused by stress, poor dietary habits.

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Test: Why Do We Fall Ill- 1 - Question 3
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Diseases affect the organs depending on the point of entry into the body. Identify the disease from the following, which enters our body through a mosquito bite and reaches the brain:

Detailed Solution: Question 3

  • Encephalitis is a term used to describe inflammation of the brain. This condition causes problems with the brain and spinal cord function.
  • The inflammation causes the brain to swell, which leads to changes in the person’s neurologic condition, including mental confusion and seizures.

Test: Why Do We Fall Ill- 1 - Question 4
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Which one of the following has a long term effect on the health of an individual?

Detailed Solution: Question 4

  • Chewing of tobacco may cause long term effects on an individual. It increases the risk for leukoplakia which is a precursor to oral cancer.
  • Chewing tobacco has been known to cause cancer, particularly of the mouth and throat.

Test: Why Do We Fall Ill- 1 - Question 5
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The diseases where microbes are the immediate causes are called _________.

Detailed Solution: Question 5

Diseases where microbes are immediate causes are called infectious diseases. Microbes can spread in a community and thereby spread the disease. 
Example: Tuberculosis, common cold, AIDS, etc.

Test: Why Do We Fall Ill- 1 - Question 6
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Which one of the following is not a viral disease?

Detailed Solution: Question 6

Typhoid is caused by Salmonella typhi, which is a bacteria. All other diseases are caused by viruses.

Test: Why Do We Fall Ill- 1 - Question 7
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Malarial parasite after entering the human body reaches the:

Detailed Solution: Question 7

  • Malaria spreads when a mosquito becomes infected with the disease after biting an infected person, and the infected mosquito then bites a non-infected person.
  • The malaria parasites enter that person's bloodstream and travel to the liver. When the parasites mature, they leave the liver and infect red blood cells.

Test: Why Do We Fall Ill- 1 - Question 8
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We should not allow mosquitoes to breed in our surroundings because they______.

Detailed Solution: Question 8

  • Mosquitos cause more human suffering than any other organism. Mosquitoes act as a vector for bacteria and viruses, responsible for diseases such as malaria, dengue, encephalitis and yellow fever etc.
  • When mosquitoes bite a human it causes severe skin irritation through an allergic reaction to the mosquitoes saliva, this is what causes the red bump and itching.

Test: Why Do We Fall Ill- 1 - Question 9
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Sleeping sickness is caused by (i) ________ , which is a (ii) ___________.

Detailed Solution: Question 9

  • Human African trypanosomiasis, also known as sleeping sickness, is a vector-borne parasitic disease.
  • It is caused by infection with protozoan parasites belonging to the genus Trypanosoma.

Test: Why Do We Fall Ill- 1 - Question 10
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AIDS cannot be transmitted by:

Detailed Solution: Question 10

  • AIDS ( acquired immunodeficiency syndrome)  don't spread by hugs or by handshakes. There are only a few ways you can get infected with HIV/AIDS.
  • AIDS can be spread by sexual contact, breastfeeding, blood transfusion.

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About this Grade 9 Practice Test

This test contains 10 MCQs on Why Do We Fall Ill- 1 with detailed solutions for each question. It is part of the course on EduRev, designed to align with the current Grade 9 syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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