Question

16. Kligler's Iron agar, because of its composition, can be used for which of the following applications? A. Testing for Hydrogen Sulfide production B. Testing for Glucose fermentation C. Testing for Lactose fermentation D. Can be used for all of the above 17. A positive reaction for Citrate utilization will produce a color change A. From deep blue to green B. From red to yellow C. From colorless to red D. From green to deep blue Answer True (A) or False (B) to the following questions 18. ___ A bacterial culture grown in Nitrate broth gives a red coloration on addition of Nitrate reagents A and B. This indicates positive reaction for Nitrate oxidation 19. _ Pseudomonas aeruginosa is positive for Oxidase activity 20. _ Streptococcus agalactiae is classified Group B beta hemolytic 21. _ Streptococcus pyogenes is classified as Group A alpha hemolytic 22. ___ Staphylococcus aureus is both mannitol fermenting and coagulase positive 23. Which of the following is a selective and differential medium for the genus Staphylococci? A. Mannitol Salt Agar B. MacConkey Agar C. M Staphylococcal Medium D. Both A and C E. All of the above 24. Mannitol Salt Agar contains mannitol, 7.5% sodium chloride, and phenol red. The role of sodium chloride in the medium is A. To select for all gram positive bacteria B. To select for all gram negative bacteria C. To inhibit the growth of organisms other than Staphylococci D. To differentiate Mannitol Salt agar (MSA) from Staphylococcus medium 110 (SM 110) 25. Which of the following is not a selective and differential medium for the growth of Gram negative bacteria? A. MacConkey Agar B. Hektoen Agar C. Xylose Lysine Desoxycholate (XLD) Agar D. Fluid Thioglycollate Medium (FTM)

16. Kligler's Iron agar, because of its composition, can be used for which of the following applications?
A. Testing for Hydrogen Sulfide production
B. Testing for Glucose fermentation
C. Testing for Lactose fermentation
D. Can be used for all of the above

17. A positive reaction for Citrate utilization will produce a color change
A. From deep blue to green
B. From red to yellow
C. From colorless to red
D. From green to deep blue

Answer True (A) or False (B) to the following questions

18. _____ A bacterial culture grown in Nitrate broth gives a red coloration on addition of Nitrate reagents A and B. This indicates positive reaction for Nitrate oxidation

19. _____ Pseudomonas aeruginosa is positive for Oxidase activity

20. _____ Streptococcus agalactiae is classified Group B beta hemolytic

21. _____ Streptococcus pyogenes is classified as Group A alpha hemolytic

22. _____ Staphylococcus aureus is both mannitol fermenting and coagulase positive

23. Which of the following is a selective and differential medium for the genus Staphylococci?
A. Mannitol Salt Agar
B. MacConkey Agar
C. M Staphylococcal Medium
D. Both A and C
E. All of the above

24. Mannitol Salt Agar contains mannitol, 7.5% sodium chloride, and phenol red. The role of sodium chloride in the medium is
A. To select for all gram positive bacteria
B. To select for all gram negative bacteria
C. To inhibit the growth of organisms other than Staphylococci
D. To differentiate Mannitol Salt agar (MSA) from Staphylococcus medium 110 (SM 110)

25. Which of the following is not a selective and differential medium for the growth of Gram negative bacteria?
A. MacConkey Agar
B. Hektoen Agar
C. Xylose Lysine Desoxycholate (XLD) Agar
D. Fluid Thioglycollate Medium (FTM)

16. Kligler's Iron agar, because of its composition, can be used for which of the following applications?
A. Testing for Hydrogen Sulfide production
B. Testing for Glucose fermentation
C. Testing for Lactose fermentation
D. Can be used for all of the above

17. A positive reaction for Citrate utilization will produce a color change
A. From deep blue to green
B. From red to yellow
C. From colorless to red
D. From green to deep blue

Answer True (A) or False (B) to the following questions

18. A bacterial culture grown in Nitrate broth gives a red coloration on addition of Nitrate reagents A and B. This indicates positive reaction for Nitrate oxidation

19. Pseudomonas aeruginosa is positive for Oxidase activity

20. Streptococcus agalactiae is classified Group B beta hemolytic

21. Streptococcus pyogenes is classified as Group A alpha hemolytic

22. Staphylococcus aureus is both mannitol fermenting and coagulase positive

23. Which of the following is a selective and differential medium for the genus Staphylococci?
A. Mannitol Salt Agar
B. MacConkey Agar
C. M Staphylococcal Medium
D. Both A and C
E. All of the above

24. Mannitol Salt Agar contains mannitol, 7.5% sodium chloride, and phenol red. The role of sodium chloride in the medium is
A. To select for all gram positive bacteria
B. To select for all gram negative bacteria
C. To inhibit the growth of organisms other than Staphylococci
D. To differentiate Mannitol Salt agar (MSA) from Staphylococcus medium 110 (SM 110)

25. Which of the following is not a selective and differential medium for the growth of Gram negative bacteria?
A. MacConkey Agar
B. Hektoen Agar
C. Xylose Lysine Desoxycholate (XLD) Agar
D. Fluid Thioglycollate Medium (FTM)

Added by David S.

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