MCQ Questions | Class 9 Science Chapter 13 | Why Do we Fall Ill with Answers

MCQ | Why Do we Fall Ill Class 9 | Part-3

Check the below NCERT MCQ Questions for Class 9 Science Chapter 13 Why Do we Fall Ill with Answers Pdf free download. MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern. We have Provided Why Do we Fall Ill Class 9 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | NCERT Science Class 9

NCERT Solutions Class 9 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	9th
Subject:	Science
Chapter:	13 ( Part-3 )
Chapters Name:	Why Do we Fall Ill
Medium:	English

Ncert Solutions for Class 9 Science | Objective Type Questions

You can refer to NCERT Solutions for Class 9 Science Chapter 13 Why Do we Fall Ill to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Why Do we Fall Ill | Class 9 Science | NCERT Solutions

Q1.	Which of the following bacteria cause peptic ulcer?
	A. Helicobactor chlolecystus
	B. Helicobactor salomonis
	C. Helicobactor pylori
	D. Helicobactor hepaticus

Ans: Helicobactor pylori

Q2.	Vectors can be defined as
	A. animals carry the infecting agents from sick person to another healthy person
	B. microorganisms which cause many diseases
	C. infected person
	D. diseased plants

Ans: animals carry the infecting agents from sick person to another healthy person

Q3.	It was found that milkmaids who had cowpox did not suffer from smallpox later?
	A. Since small pox virus is closely related to cowpox virus.
	B. Scientists have not yet worked out the reason for this.
	C. Since cowpox is more deadly than smallpox.
	D. Since smallpox is more deadly than cowpox.

Ans: Since small pox virus is closely related to cowpox virus.

Q4.	Viruses, which cause hepatitis, are transmitted through
	A. air
	B. personal contact
	C. food
	D. water

Ans: personal contact

Q5.	Jaundice is a disease of
	A. kidney
	B. liver
	C. pancreas
	D. duodenum

Ans: liver

Q6.	How does penicillin kill bacteria?
	A. Penicillin makes holes in the cell membrane.
	B. Penicillin interferes with the bacterial metabolism.
	C. Penicillin inhibits protein synthesis.
	D. Penicillin prevents cell wall formation.

Ans: Penicillin prevents cell wall formation.

Q7.	Which one of the following has a long term effect on the health of an individual?
	A. Common cold
	B. Chicken pox
	C. Chewing tobacco
	D. Stress

Ans: Chewing tobacco

Q8.	AIDS cannot be transmitted by
	A. sexual contact
	B. hugs
	C. breast feeding
	D. blood transfusion

Ans: hugs

Q9.	A condition of failure of function of kidney to form urine is
	A. Creatinine
	B. Hematuria
	C. Alkaptoneuria
	D. Anuria

Ans: Anuria

Q10.	The set of diseases which spread through sexual contact as well as through placenta to the foetus are
	A. Malaria and AIDS
	B. AIDS and Syphili
	C. Syphilis and Malaria
	D. AIDS and Cancer

Ans: AIDS and Syphili

Q11.	Dengue is ………… disease
	A.Bacterial
	B.Viral
	C.Protozoan
	D.Genetic

Ans: Viral

Q12.	………………… microbes are responsible for malaria
	A.Bacteria
	B.Virus
	C.Protozoan
	D.worms

Ans: Protozoan

Q13.	………………. Are transmitted by sexual contact from the partner to other.
	A.Cancer
	B.Arthritis
	C.Alzheimer
	D.AIDS

Ans: AIDS

Q14.	………………. Are transmitted by sexual contact from the partner to other.
	A.Cancer
	B.Arthritis
	C.Alzheimer
	D.Syphilis

Ans: Syphilis

Q15.	Virus causing AIDS
	A.Flue
	B.HIV
	C.H1N1
	D.COVID 19

Ans: HIV

Q16.	Animals which carry infecting agent from sick person to another potential host , these animals called…………………..
	A.Host
	B.Vector
	C.Mosquitoes
	D.Virus

Ans: Vector

Q17.	Brain fever cause due to………………
	A.Japanese encephalitis
	B.Bacteria
	C.Plasmodium vivax
	D.H1V1

Ans: Japanese encephalitis

Q18.	If the lungs are targeted by the microbes causes…………………..
	A.Jaundice
	B.Cough and breathlessness
	C.Cancer
	D.Arthritis

Ans: Cough and breathlessness

Q19.	………………… system fight against foreign microbes which causing diseases
	A.Hb
	B.Immune system
	C.Red blood cell
	D.Plasma

Ans: Immune system

Q20.	Immune system recruits many cells to the affect tissue to kill off the disease causing microbes this recruitment called……………………..
	A.Transportation
	B.Hiring
	C.Inflammation
	D.Antipyretic agent

Ans: Inflammation

CBSE Solutions | Ncert Solutions Science Class 9

NCERT Solutions | MCQ Class 9 Science

NCERT | Class 9 Science Solutions

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MCQ Questions | Class 9 Science Chapter 13

MCQ Questions | Class 9 Science Chapter 13 | Why Do we Fall Ill with Answers

MCQ | Why Do we Fall Ill Class 9 | Part-3

Objective Question | NCERT Science Class 9

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Why Do we Fall Ill | Class 9 Science | NCERT Solutions

CBSE Solutions | Ncert Solutions Science Class 9

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NCERT | Class 9 Science Solutions

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