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Koch’s Postulates Quiz by C Kohn, WUHS Name: Hour Date Score 1. Robert Koch is considered to be the founder of . a. Medicine b. Anatomy c. Veterinary Medicine d. Bacteriology 2. Koch’s first major fight against a disease was against… a. Pneumonia b. Anthrax c. Mastitis d. Botulism 3. Koch proved that the anthrax disease was caused by the A. bacillus bacterium by… a. Infecting mice with isolated and purified strains taken from the spleens of dead animals b. Releasing mice into rooms with infected animals c. Recognizing that a. bacillus is a gram-positive bacteria d. Killing the bacteria with bleach 4. What is the significance of Koch’s work to grow the bacteria in isolation over several generations and then infect mice with the strains of later generations of bacteria? a. It proved his Petri dishes worked b. It proved that bacteria could reproduce c. It proved that bacteria that never had been in contact with the animal could still cause the disease d. It proved that Koch was a procrastinator that always put things off 5. Which of the following places Koch’s postulates in the correct order? a. Microorganisms are grown in pure culture and identified; Microorganisms are isolated; Microorganisms are injected into healthy animals to cause a disease; Microorganisms are isolated from the now-sick animal and identified b. Microorganisms are isolated; Microorganisms are grown in pure culture and identified; Microorganisms are isolated from the now-sick animal and identified; Microorganisms are injected into healthy animals to cause a disease c. Microorganisms are isolated; Microorganisms are grown in pure culture and identified; Microorganisms are injected into healthy animals to cause a disease; Microorganisms are isolated from the now-sick animal and identified 6. Which of the following is NOT an exception to Koch’s Postulates a. Viral Diseases b. Diseases caused by 2+ pathogens c. Deadly contagious diseases d. Gram-negative bacterial diseases 7. An acute disease is … a. A disease with no visible symptoms b. A disease with a period of no symptoms due to inactivity of the pathogen but can still be contagious c. A disease with rapid-onset symptoms that tend to be more severe d. A disease with slow-onset symptoms that last a very long time C OPYRIGHT C RAIG K OHN, W ATERFORD WI 2011. A VAILABLE FOR PUBLIC USE PROVIDED THE AUTHOR IS CITED . 8. A chronic disease is … a. A disease with no visible symptoms b. A disease with a period of no symptoms due to inactivity of the pathogen but can still be contagious c. A disease with rapid-onset symptoms that tend to be more severe d. A disease with slow-onset symptoms that last a very long time 9. A subclinical disease is … a. A disease with no visible symptoms b. A disease with a period of no symptoms due to inactivity of the pathogen but can still be contagious c. A disease with rapid-onset symptoms that tend to be more severe d. A disease with slow-onset symptoms that last a very long time 10. A latent disease is … a. A disease with no visible symptoms b. A disease with a period of no symptoms due to inactivity of the pathogen but can still be contagious c. A disease with rapid-onset symptoms that tend to be more severe d. A disease with slow-onset symptoms that last a very long time 11. A cow has a confirmed case of mastitis but shows no symptoms. This case of mastitis could be best described as… a. Chronic b. Acute c. Latent d. Subclinical 12. A horse has a bone growth the slowly impairs its ability to run. This situation would be best described as a. Chronic b. Acute c. Latent d. Subclinical 13. A cow has a severe infection in her udder but quickly responds to a shot of antibiotics. This case of mastitis would best be described as… a. Chronic b. Acute c. Latent d. Subclinical 14. If a laboratory test is necessary to confirm a disease due to no outwardly visible symptoms, that disease would most likely be… a. Chronic b. Acute c. Latent d. Subclinical 15. Are Koch’s Postulates always necessary to diagnose a disease? a. No – they are more like guidelines for confirming a pathogen but do not have to be carried out completely to diagnose a disease b. Yes – all Postulates must be met for a disease to be confirmed c. Nobody knows for sure… we’ll get back to you C OPYRIGHT C RAIG K OHN, W ATERFORD WI 2011. A VAILABLE FOR PUBLIC USE PROVIDED THE AUTHOR IS CITED .
