Answer the following microbiology questions, incorrect answers have been cited.
ID: 161742 • Letter: A
Question
Answer the following microbiology questions, incorrect answers have been cited.
The death phase for a gram positive rod Is characterized by: A decrease In the total cell count and a decrease In the viable cell count A decrease In the total cell count and an Increase In the viable cell count An Increase In the total cell count and an Increase In the viable cell count A steady level of the total cell count and a decrease In the viable cell count Among the characteristics which are associated with delayed hypersensitivity as seen In the tuberculosis Infections are: The skin test becomes positive when the symptoms appear The skin test Is positive as long as symptoms persist The skin test remains positive throughout life for Immunocompetent Individuals A positive skin test that becomes negative Implies that the infection Is newly acquired A negative skin test that becomes positive Implies a very poor prognosis When using a plate count to follow the growth of an organism that forms a capsule, you expect to see: an Increase In the viable cell count above that of a non-encapsulated organism A death rate that Is slower than a non-encapsulated organism A total cell count that is higher than a non-encapsulated organism No difference between an organism with or without a capsule A bacterial cell that cannot complete binary fission Is described as: Inhibited dead having arrested metabolism having no enzyme activity sterile The extreme diarrhea of cholera is caused by: Invasion of the wall of the Intestine production of an endotoxin disturbance of the electrolytes In the Intestinal wall A and B B and C Most probable number tables are used: to Increase the statistical reliability of a plate count to decrease the sources of pipetting errors In a dilution count to decrease the errors associated with the overlap of colonies on agar to compensate for minor deviations In standard conditions Increase the statistic reliability If a dilution countExplanation / Answer
1. The death phase for a gram positive rod is characterized by the steady level of the total cell count and decrease in the viable cell count. because its life is determined by the cell divisionn during the steady phase and in the grwoing stage.
3. This plate count technique is used to perform viable plate counts, in which the total quantity of mircrobes are tested and reported the display growth characteristics such as capsules
2. the delayed hypersensitivity seen in the tuberclosis infections then the skin test become positive when the smptoms appear
4 a bacterail cell that cannot complete binnary fission is described as having no enzyme activity
5 the xtreme diarohea cholera is us caused by production of endotoxin