CBSE Questions for Class 9 Biology Why Do We Fall Ill Quiz 2 - MCQExams.com

Name any two acute diseases. 
  • Pneumonia, Malaria 
  • AIDS, Tuberculosis 
  • Tuberculosis, Malaria 
  • Pneumonia, Common cold 
.................... disease continues for a few days and causes no longer term effect on body.
  • Acute
  • Chronic
  • Infectious
  • Contagious
A patient suffering from a chronic disease 
  • Suffers from disease for a very long period
  • Has abrupt attack of disease
  • Suffers from disease for short period
  • Both B and C
Which of the following disease has been completely eradicated through compulsory immunization?
  • Smallpox
  • Tuberculosis
  • Hepatitis
  • Chicken pox
Which of the following is/are air borne diseases?
  • Tuberculosis
  • Common cold
  • Pneumonia
  • All of the above
Health of an organism depends upon the surrounding environmental conditions.
  • True
  • False
Mass scale immunization is still going on
  • Polio
  • AIDS
  • Typhoid 
  • Both polio and AIDS 
Contaminated water is a rich source of 
  • Cholera
  • Typhoid
  • Hepatitis
  • All of these
  • Both A and B
Name group of diseases that last only for short period of time.
  • Acute diseases
  • Epidemic diseases
  • Seasonal epidemic diseases
  • Chronic diseases
Which of the following statements is incorrect?
  • AIDS can be prevented by taking precautions and avoiding unsafe sexual contact.
  • Prevention is better than cure.
  • Treatment is better than prevention.
  • Vaccination provides protection against specific disease.
Health is defined as _______________.
  • A state of complete physical well-being
  • A state of complete mental well-being
  • A state of complete social well-being
  • All of these
What is health?
  • State of mental well being of the body.
  • State of microbial well being of the body.
  • State of physical well being of the body.
  • Both A and C.
The pharmaceutical chemical we use to fight fever is 
  • Paracetamol
  • Ascorbic acid
  • Ammonium sulphate
  • Toluene
Chronic disease means it
  • Lasts for a long time
  • Occurs from the time of birth
  • Lasts for a short time
  • Both B and C
Which of the following diseases are classified as acute diseases?
A. Tuberculosis
B. Cancer
C. Common cold
D. Viral fever
The correct one is
  • B and C
  • B and D
  • A and B
  • C and D
The disease which begins abruptly and lasts only for a short duration is known as
  • Chronic disease
  • Acute disease
  • Genetic disease
  • Haemophilia
Which of the following diseases are transmitted through air?
  • Typhoid, cholera and pneumonia
  • AIDS, tuberculosis and pneumonia
  • Tuberculosis and pneumonia
  • All of the above diseases
Which of the following are not correct?

(a) Disease-causing organisms are called pathogens
(b) Microbes are always harmful
(c) All microbes are spoilage of food
  • a, b
  • b, c
  • a, c
  • All of the above
Direct transmission of diseases can take place in the following ways
  • Sexual contact
  • Contamination of food and water
  • Air
  • All of the above
Infectious diseases are caused by _______.
  • Animals
  • Birds
  • Micro-organisms
  • All of the above
Indirect transmission of disease is ________
  • Contagious
  • Non-contagious
  • Both A and B
  • None of these
Which of the following is an acute disease?
  • Cancer
  • Alzheimer's disease
  • Diabetes
  • Common cold
________ disease lasts for short duration of time.
  • Acute
  • Chronic
  • Both A and B
  • Minor
A disease-free person may not be a _______ person.
  • Healthy
  • Unhealthy
  • Weak
  • Unstable
The vector responsible for transfer of disease
  • Insects
  • Snakes
  • Birds
  • None of the above
Transmission of diseases can be ________
  • Coordinated
  • Both C and D
  • Direct
  • Indirect
Chronic diseases are said to stay for ....... duration.
  • Short
  • Long
  • Fortnight
  • Few days
How can you protect yourself from infections ?
  • Washing hands
  • Keeping surroundings clean
  • Having a proper and healthy diet
  • All of the above
What is air-borne transmission ?
  • Particles containing no organisms are spread
  • Particles containing organisms which can remain in air for long time
  • Particles containing organisms which can remain in air for short time
  • None of the above
Relief from the infectious disease will be obtained if
  • The person is healthy
  • Course of the medicine is completed
  • Medicine is taken only once
  • None of the above
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