Discussion
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- Question
Which of the following disease is not caused by microbial protein toxin?
Options- A. Botulism
- B. Diphtheria
- C. Shigella dysentery
- D. Tuberculosis
- Correct Answer
- Tuberculosis
- 1. The nature of the poliovirus gives for oral vaccination (satin vaccine) as part of the eradication programme is
Options- A. heat killed virus
- B. live attenuated strains of all three immunological types
- C. small dosage of wild-type live viruses
- D. formalin-inactivated viruses Discuss
- 2. Type III secretion systems are used to inject "effector" proteins directly into a host cell. Salmonella uses a type III secretion system to help the pathogen to
Options- A. survive the acid pH of the stomach
- B. secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine
- C. survive within macrophages
- D. activate T cells to proliferate and secrete cytokines Discuss
- 3. An important host defense of human beings is a dense resident microbiota associated with
Options- A. lungs
- B. bladder
- C. uterus
- D. vagina Discuss
- 4. The agent responsible for causing mad cow disease is thought to be a
Options- A. fungus
- B. protozoan
- C. prion
- D. virus Discuss
- 5. Each of the 3 virulence factors of Bacillus anthracis i.e. the capsule, edema toxin and lethal toxin can affect the activity of
Options- A. B cells
- B. macrophages
- C. ciliated epithelial cells
- D. M cells Discuss
- 6. In the human disease cholera, what is it that actually ends up killing the victim?
Options- A. Faulty carrier proteins
- B. Dehydration and loss of nutrients
- C. Too little water in the food stream
- D. the toxin produced by the bacterium Discuss
- 7. What is common in catheters and ventilators?
Options- A. They bypass important defenses of the body
- B. Bacteria responsible for associated infections are usually susceptible to antibiotics
- C. They predispose patients to viral rather than bacterial infections
- D. They are used primarily in neonatal intensive care units Discuss
- 8. The toxins produced by bacteria
Options- A. kill viruses
- B. encourage bacterial reproduction
- C. interfere with physiological processes in the body
- D. all of the above Discuss
- 9. Which of the following is common in the disease caused by Coryne-bacterium diphtheriae and Bacillus anthracis?
Options- A. Both organisms are gram-positive spore formers
- B. Diphtheria toxin and edema toxin are ADP ribosylating toxins
- C. The most serious disease symptoms are the direct result of toxin action
- D. Both organisms cause skin and respiratory tract infections Discuss
- 10. Pseudomembraneous colitis is
Options- A. precipitated by the use of certain antibiotics
- B. caused by a gram-positive bacterium
- C. caused by a spore-forming bacterium
- D. all of the above Discuss
Microorganisms and Disease problems
Search Results
Correct Answer: live attenuated strains of all three immunological types
Correct Answer: survive within macrophages
Correct Answer: vagina
Correct Answer: prion
Correct Answer: macrophages
Correct Answer: Dehydration and loss of nutrients
Correct Answer: They bypass important defenses of the body
Correct Answer: interfere with physiological processes in the body
Correct Answer: The most serious disease symptoms are the direct result of toxin action
Correct Answer: all of the above
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