Solving the Why do we Fall Ill Multiple Choice Questions of Class 9 Science Chapter 13 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Why do we Fall Ill Class 9 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 13 Science Class 9 and cross-check your answers during preparation.

Multiple Choice Questions

Question 1.
Which one of the following is not a viral disease?
(a) Dengue
(b) AIDS
(c) Typhoid
(d) Influenza

Answer

Answer: (c) Typhoid

---

Question 2.
Which one of the following is not a bacterial disease?
(a) Cholera
(b) Tuberculosis
(c) Anthrax
(d) Influenza

Answer

Answer: (d) Influenza

---

Question 3.
Which one of the following causes Kala-azar?
(a) Ascaris
(b) Trypanosoma
(c) Leishmania
(d) Bacteria

Answer

Answer: (c) Leishmania

---

Question 4.
AIDS cannot be transmitted by:
(a) sexual contact
(b) hugs
(c) breastfeeding
(d) blood transfusion

Answer

Answer: (b) hugs

---

Question 5.
Which one of the following diseases is not caused by bacteria?
(a) Typhoid
(b) Anthrax
(c) Tuberculosis
(d) Malaria

Answer

Answer: (d) Malaria

---

Question 6.
Viruses, which causes hepatitis are transmitted through:
(a) air
(b) water
(c) food
(d) personal contact

Answer

Answer: (b) water

---

Question 7.
The name of bacterial disease is
(a) Ringworm
(b) Measles
(c) Typhoid
(d) Malaria

Answer

Answer: (c) Typhoid

---

Question 8.
T.B. (Tuberculosis) is caused by:
(a) Vibrio Cholerae
(b) Mycobacterium tuberculosis
(c) HIV virus
(d) Salmonella typhi (bacteria)

Answer

Answer: (b) Mycobacterium tuberculosis

---

Fill in the Blanks.

Question 9.
Common cold is a/an _______ disease.

Answer

Answer: communicable infections

---

Question 10.
Many skin diseases are caused by ________

Answer

Answer: fungi

---

Question 11.
Typhoid fever, cholera, tuberculosis and anthrax are caused by _________

Answer

Answer: bacteria

---

Question 12.
__________ cause many familiar diseases, such as malaria and Kala-azar.

Answer

Answer: Protozoans

---

Question 13.
Elephantiasis is caused by a _________

Answer

Answer: worm

---

Question 14.
Cholera is a __________ disease.

Answer

Answer: communicable

---

Question 15.
Malaria is caused by a _________

Answer

Answer: protozoan

---

Question 16.
An example of chronic diseases is worm infestation named ________

Answer

Answer: elephantiasis

---

True/False.

Question 17.
The health of all individuals depends on their surroundings or their environment.

Answer

Answer: True

---

Question 18.
Common examples of diseases caused by viruses are the common cold, influenza, dengue fever, and AIDS.

Answer

Answer: True

---

Question 19.
All diseases can be transmitted from a sick person to healthy people.

Answer

Answer: False

---

Question 20.
Making anti-viral medicines is more difficult than making anti-bacterial medicines.

Answer

Answer: True

---

Question 21.
Malaria is a communicable disease.

Answer

Answer: True

---

Question 22.
Health is a state of physical, mental, and social well-being.

Answer

Answer: True

---

Question 23.
Infectious diseases can not be prevented by using immunisation.

Answer

Answer: False

---

Match the Column.

Question 24.

A	B
1. Mosquito	(i) Acne
2. Leishmania	(ii) Cowpox
3. Staphylococci	(iii) Peptic ulcers
4. Marshall and Warren	(iv) Vector
5. Edward Jenner	(v) Kala-azar

Answer

Answer:

A	B
1. Mosquito	(iv) Vector
2. Leishmania	(v) Kala-azar
3. Staphylococci	(i) Acne
4. Marshall and Warren	(iii) Peptic ulcers
5. Edward Jenner	(ii) Cowpox

---

Answer in one Word/Sentence.

Question 25.
Write the full form of AIDS?

Answer

Answer: Acquired Immuno Deficiency Syndrome

---

Question 26.
Name the vaccine used to prevent T. B. (Tuberculosis).

Answer

Answer: B.C.G. Vaccination

---

Question 27.
Who received Nobel Prize in 2005 for their contribution related to the cause of peptic ulcers?

Answer

Answer: Marshall and Warren

---

Question 28.
What type of organism Helicobacter pylori is that causes peptic ulcers?

Answer

Answer: A bacterium

---

Question 29.
Name the target organ in hepatitis?

Answer

Answer: Liver

---

Question 30.
Name the target organ in pneumonia?

Answer

Answer: Lungs

---

Question 31.
Name the most common target organ in fungal disease?

Answer

Answer: Skin

---

Question 32.
Who discovered ‘vaccine’?

Answer

Answer: Edward Jenner

---