Section A : Very Short Answer Questions
1. Discuss two ways to prevent communicable diseases.
____________________________________________________________
2. What do you mean by non-infectious diseases?
_____________________________________________________________
3. What is hypervitaminosis?
____________________________________________________________
4. List three diseases which are caused by contaminated food and water.
_________________________________________________________
5. What do you mean by immunity?
____________________________________________________________
Section B :Correct the following statements and rewrite
1. Louis Pasteur developed vaccines against rickets.
___________________________________________________________
2. Deficiency of calcium causes anemia.
_____________________________________________________________
3. Diseases can be caused by germs only.
_____________________________________________________________
4. Sunlight is a natural source of vitamin K.
_____________________________________________________________
5. Culex mosquito sucks blood and causes Malaria.
_____________________________________________________________
Section C: Application based questions
1. Dr. Ramesh has three patients in his clinic with the following symptoms.
Can you identify the diseases that they are suffering from?
(a) Patient 1: Cannot see properly in dim light.
(b)Patient 2: Has swelling in the neck region.
(c) Patient 3: Has bleeding gums and swollen joints.
__________________________________________________________________
_________________________________________________________________
2. Name a disease a person with the following symptoms is suffering from:
a) Bleeding gums: ________________
b) Swollen neck: __________________
c) Curved legs: __________________
Answers
Explanation:
1
Wash your hands often with soap and water.
Avoid touching your eyes, nose, and mouth –especially when you are sick.
Cover your coughs and sneezes so you do not spread germs to others.
2
Non-infectious diseases are not caused by pathogens and therefore cannot be spread from one person to another. Instead, non-infectious diseases are caused by factors such as genetics, malnutrition, environment and lifestyle.
3
It is an abnormal state resulting from excessive intake of one or more vitamins
4
Food and waterborne infections
i) Norovirus.
ii) Campylobacter.
iii) Salmonella.
iv) Shigella.
v) E. coli.
vi) Listeria.
vii) Yersinia.
5
Immunity refers to the body's ability to prevent the invasion of pathogens.
1
Louis Pasteur developed vaccines against anthrax.
2
Deficiency of iron causes anemia.
3
Diseases cannot be caused by germs only.
4
Sunlight is a natural source of vitamin D.
5
Female Anopheles mosquito sucks blood and causes Malaria.
1
a) Night Blindness (Nyctalopia)
b) goitre
c) scurvy
2
a) Gingivitis
b) Goitre
c) Scurvy
PLEASE MARK AS BRAINLIEST