General microbiology

A. Haemolytic streptococci B. Micrococci
C. Bacilli D. Yeast fungi E. –
2. Presence of pathogenic microorganisms in the air can be detected by presence of sanitary representative bacteria. Choose bacteria that are indicators of direct epidemiological danger:
A. Hemolytic streptococci B.Sarcina C.Molds D.Yeast E.Micrococci
3. Sanitary microbiological analysis of the indoor air of a pharmacy carried out in summer revealed presence of Streptococcus haemolyticus and Streptococcus viridians at the rate of 40 microorganisms per 1 m3. Specify the microbiological characteristic of the air:
A. Contaminated B. Within the permissible limits
C. Almost pure D. Pure
E. These microorganisms are not the determinants of the air quality
4. Sanitary and bacteriological examination of air in drug-store premises revealed increased content of sanitary representative microorganisms. What microorganisms are these?
A. Golden staphylococcus and hemolytic streptococcus
B. Diphtheria and tuberculosis bacilli C. Colon and blue pus bacilli
D. Epidermal staphylococcus and sarcina E. Enterococci and citrobacter
5. During sanitary and bacteriological examination of air in a drugstore it was revealed that the air had high concentration of sanitary meaningful microorganisms. What microorganisms are these?
A. Staphylococcus aureus and hemolytic streptococcus
B. Diphtheritic and tuberculous bacilli C. Colibacilli and blue pus bacilli
D. Epidermal staphylococcus and Sarcina E. Enterococci and Citrobacter
6. Sanitary-biologic examination of air in a drugstore revealed a sanitary-indicative microorganism. Name it:
A. Staphylococcus aureus B. Colon bacillus C. Fecal enterococcus
D. α-haemolytic streptococcus E. Citrobacter
7. Routine investigation of microbiological sanitary condition of air in a hospital is performed once in 3 months. What microorganism is the sanitary indicator of air condition in an enclosed space?
A. S.aureus
B. E.coli
C. E.faecalis
D. P.aeruginosa
E. C.perfringens
8. Sanitary bacteriological research on water by the membrane filter method revealed two red colonies on a membrane filter (Endo agar) through which 500 ml of analyzed water were passed. Calculate the coli index and coli titer of the analyzed water:
A. 4 and 250 B. 2 and 500 C. 250 and 4
D. 500 and 2 E. 250 and 2
9. During sanitary and bacteriological testing of water with the membrane filter technique there were revealed two red colonies on a membrane filter (Endo agar) through which 500 ml of water was filtred. Calculate the coli index and coli titer of the analyzed water:
A. 4 and 250 B. 2 and 500 C. 250 and 4
D. 500 and 2 E. 250 and 2
10. After the sanitary and bacteriological study of tap water the following results were obtained: the total number of bacteria in 1,0 ml was 80, coli index was 3. How would you interpret the study results?