Biology · Science General

Disease Causative Agents

2,531 Questions

Disease causative agents questions test your understanding of viral, bacterial, and fungal infections, along with their transmission methods. These are common topics in general science sections of SSC and railways exams. Practice these questions to accurately identify disease pathogens and symptoms.

Viral diseasesFoodborne illnessesDisease transmission methodsExtrinsic disease factorsCommon pathogens

Disease Causative Agents Questions

Multiple choice

Which of the following is not a bacterial disease?

  1. Typhoid

  2. Tuberculosis

  3. Diptheria

  4. Tetanus

  5. Athlete's foot
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Fungi grow best in warm, moist areas, such as the area between the toes. Athlete's foot is a fungal disease. This is the correct answer.

Multiple choice

STDs caused by bacteria or parasites can be treated with antibiotics or other medicines but STDs caused by viruses cannot be cured. Which of the following STDs is/are caused by viruses?

  1. Chlamydia

  2. Syphilis

  3. Gonorrhea

  4. Herpes

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer as herpes is caused by herpes simplex virus. There is no cure for this. Once a person has the virus, it remains in the body. The virus lies inactive in the nerve cells until something triggers it to become active again.

Multiple choice

Which of the following is/are correct about tuberculosis?

a. It is caused by Salmonella. b. It commonly affects lungs. c. Bacteria release tuberculin toxin. d. Patient's sputum contains blood.

  1. a, b, c and d

  2. a, b and c

  3. a, c and d

  4. a, b and d

  5. b, c and d
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer as all these statements about tuberculosis are correct. It commonly affects lungs. Bacteria release tuberculin toxin. Patient's sputum contains blood.

Multiple choice

All of the following cause poultry diseases, except

  1. bacteria

  2. algae

  3. fungi

  4. virus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Reason: There are a number of diseases prevalent in poultry. The diseases are caused by organisms like virus, bacteria, fungi, parasites as well as other nutritional deficiencies (i.e. lack of some important component in the feed given to them; may be proteins, carbohydrates, fats, vitamins or minerals). Algae are a group of simple autotrophic organisms (auto - self; trophic - nutrition, i.e. they make their own food from CO2 + H2O in the presence of sunlight and chlorophyll). These autotrophic organisms do not cause any disease in the poultry fowl.

Multiple choice

Which of the following causes destruction of domestic objects like wooden furniture and leather bags?

Economic importance of bacteria also includes its harmful activities. Around 90% infections in humans are caused by bacteria. They equally affect green plants including their different parts.

  1. Staphylococcus aureus

  2. Sporophytic bacteria

  3. Spirochaete cytophaga

  4. Mycobacterium leprae

  5. Bacillus typhosus
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It causes destruction of different domestic objects. It is chemoheterotrophic in nature. It causes some other diseases like leptospirosis, Lyme disorder and syphilis.

Multiple choice

Smoking can cause

  1. Malaria

  2. Influenja

  3. Typhoid

  4. Bronchitis

  5. Cholera
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

smoking caused the respiratory infections like bronchitis and allergies.

Multiple choice

Which of the following describes the word pathogen?

  1. It a protein made by white blood cells that can help destroy microbes

  2. which kills, or prevents the growth of bacteria in the body

  3. It is the result of a micro-organism entering the body and causing disease

  4. It is a micro-organism that can cause a disease

  5. which kills, or prevents the growth of bacteria on external parts of the body
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A micro organism that can cause a disease is know as pathogen.