CBSE Class 9 - Science - Why do we Fall ill? (MCQs)

Why do we Fall ill? 

(MCQs)

Q1: Which one of the following is an infectious disease?

(a) diptheria
(b) diabetes
(c) hypertension
(d) cancer


Q2: Elephantiasis disease can have

(a) short-term affect on our health
(b) no effect on our health
(c) long term affect on our health
(d) sometimes bad effect on our health




Q3: Ascaris worm lives in which part of human body?

(a) kidneys
(b) liver
(c) small intestine
(d) large intestine


Q4: Microbes which enter the body through nose most likely affect

(a) liver
(b) heart
(c) brain
(d) lungs


Q5: Which of the following is a viral infection?

(a) Dipteria
(b) Influenza
(c) Cholera
(d) Typhoid


Q6: HIV virus when active in body mainly attacks on

(a) lungs
(b) liver
(c) immunity
(d) nerves


Q7: An Organism which carries pathogens is termed as

(a) host
(b) vector
(c) parasite
(d) predator


Q8: Diseases which are always present in certain location are called?

(a) epidemic diseases
(b) endemic diseases
(c) acute diseases
(d) chronic diseases


Q9: DPT vaccines are administered to develop immunity against

(a) Tetanaus
(b) Diptheria
(c) Pertussis
(d) All of these


Q10: Anti-viral drugs are difficult to make because, viruses

(a) live outside the host cells
(b) live inside the host cells
(c) live in consumed food particles
(d) live in blood stream


Q11: BCG vaccine is used to develop immunity against

(a) jaundice
(b) polio
(c) influenza
(d) tuberculosis


Q12: Which of the following is a communicable disease?
(a) Rickets
(b) Scurvy
(c) Marasmus
(d) Cholera

Q13: The causative organism for malaria is a:
(a) bacteria
(b) protozoa
(c) virus
(d) fungi

Q14: Vaccination helps in controlling diseases because
(a) it develops resistance against the pathogen attack
(b) it kills the pathogens causing disease
(c) it blocks the food supplied to pathogens
(d) it does not allow pathogens to multiply in hosts


Q15: ORS is given in

(a) diarrhoea
(b) measeles
(c) typhoid
(d) tetanus

Q16: Which of the following is an example of nutritional deficiency disease?

(a) Hypertension
(b) Rickets
(c) Diabetes
(d) Gastroenteritis

Answers:
1: (a) diptheria
2: (c) long term affect on our health
3: (c) small intestine
4: (d) lungs
5: (b) Influenza
6: (c) immunity
7: (b) vector
8: (a) epidemic diseases
9: (d) All of these
10: (a) live outside the host cells
11: (d) tuberculosis
12: (d) Cholera
13: (b) protozoa
14: (a) it develops resistance against the pathogen attack
15: (a) diarrhoea
16: (b) Rickets