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Home › Grade9 › Grade 9 CBSE › Biology › Why do we fall ill › Why do we fall ill Worksheet-1

Why do we fall ill Worksheet-1

Why do we fall ill Worksheet-1

 

Fill in the blanks:

  1. A disease is due to ______ of the body function.

 

  1. Fever with shivering is a _____ of disease Malaria.

 

  1. _______ means disturbed ease or a state of being uncomfortable.

 

  1. An acute disease is a ______ duration disease.

 

  1. _______ disease is  a long duration, slow developing, disabling disease.

 

  1. Virus is the ______ cause or first level cause of disease common diarrhoea.

 

  1. ______ diseases are those which are found in an individual since birth.

 

  1. Infectious diseases are those that are caused by ______ and are able to spread from a diseased person to a healthy person.

 

  1. Non-infectious diseases are caused due to _____ factors like genetic, nutrient deficiency etc.

 

  1. Genetic disorders of deficiency of nutrient are the examples of factors that can cause ______ diseases.

 

  1. Diabetes is a _______ type of disease.

 

  1. Peptic ulcer is caused by bacterium ________.

 

  1. Trypanosoma is the _______ organism responsible for sleeping sickness.

 

  1. Leishmania is the protozoan that causes _____ disease.

 

  1. _______ is caused by bacteria Salmonella typhi.

 

  1. The antibiotic _____ blocks the process that builds the cell wall in bacteria.

 

  1. Diseases that can spread from one person to the other are known as _____ diseases.

 

  1. Air, water, vector, contact are the means of ______ of communicable diseases.

 

  1. AIDS can spread through _______ physical contact between a patient and a healthy person.

 

  1. _______are the animals that can carry the pathogen from unhealthy person to a healthy person.

 

  1. Pathogens entering into the host through nose are more likely to affect the ____system.

 

  1. Recruitment of immune cells to the site of damaged tissue to kill the microbe is known as ______.

 

  1. The target cells of HIV causing AIDS are _____ cells.

 

  1. Severity of disease manifestations depend on the ______ of microbes in the body.

 

  1. The ______ system helps in reducing the number of microbes in body and thus controls the disease.

 

Answer:

  1. Malfunctioning

  2. Symptom

  3. Disease

  4. Short

  5. Chronic

  6. immediate

  7. Congenital

  8. Pathogens

  9. Internal

  10. Non-infections

  11. Non-infectious

  12. Helicobacter pylori

  13. Protozoan

  14. Kala azar fever

  15. Typhoid

  16. Penicillin

  17. Communicable

  18. Spread

  19. Direct

  20. Vectors

  21. Respiratory

  22. Inflammation

  23. Immune

  24. Number

  25. Immune