- 11 Incomplete Lysis Of Sheep Red Blood Cells With The Production Of Methemoglobins Products Giving Which Is Characteris 1 (163.05 KiB) Viewed 15 times
11. Incomplete lysis of sheep red blood cells with the production of methemoglobins products giving which is characteristic of A) a clear zone around bacteria colonies - Bacillus subtilis B) no zone around the bacteria colonies - Escherichia coli C) a greenish zone around the bacteria colonies - Streptococcus mutans D) gamma hemolysis - Staphylococcus epidermis E) none of the above = identify 12. A recombinant strain of Pseudomona syringae, developed using recombinant DNA technology, characteristically does not ferment sugars. Therefore this organisms appears as follows: A) red/pink or purplish colonies on EMB agar B) colorless colonies of MacConkey's agar C) tiny pin point colonies on blood agar D) growth only in the bottom of thioglycolate media E) none of the above = identify 13. The mucoid characteristic of a bacteria colony is characteristically which usually produced by a bacteria such as strings when touched is best associated A) flagella - Proteus vulgaris B) cell wall - Corynebacterium species C) catalase production - Staphylococcus species D) capsule - Klebsiella species E) none of the above = identify 14. Protection of some bacteria against the humoral immune response and/or the inflammatory response in an infected host is achieved by the virulent (s) strains of Streptococcus pneumonae and by Klebsiella species by the A) slime layer B) cell wall C) pili D) capsule E) none of the above = identify 15. Streptokinase, an enzyme that is used in cardiac therapy is produced by a microorganisms that is A) a gram positive bacilli B) a gram negative cocci C) a gram positive cocci D) either of the above E) none of the above identify 16. On TSI agar, Shigella species produces a red slant and a yellow butt. Which of the following carbohydrates has been fermented? A) lactose B) sucrose C) lactose D) glucose E) all of the above 17. Rheumatic fever is a disease that results from the destruction of cardiac tissue by the immune system. This is a an example of A) reaction to antigen antibody tissue deposition by pyrogenic infections by Group A Streptococci B) natural immunity due to antibodies in nasal secretions C) autoimmune disease - IgG antibodies D) the clonal selection theory in action believed to be characteristic of b lymphocytes in antibody production E) none of the above =