An organism that can grow in an environment with an alkaline pH, high salt concentration, and at a temperature of 0C is described as
A) alkaliphilic, halophilic, and mesophlic. B) acidophilic, alkaliphilic, and thermophilic.
C) alkaliphilic, halophilic, and psychrophilic. D) acidophilic, mesophlic, and thermophilic.
Question 2
A 2-week-old baby boy is hospitalized with fever, poor feeding, and lethargy.
Laboratory results to date include:
Blood cultures: negative to date
Cerebrospinal fluid:
4200 WBC/l with 95 neutrophils
Glucose: 2 mg/dl
Protein: 355 mg/dl
Direct Gram stain: few small gram-positive coccobacilli and moderate WBCs
Direct bacterial latex agglutination:
H. influenzae type b, N. meningitidis serogroups A, C, Y, and W135, S. pneumoniae, Group B Streptococcus, and E. coli K1 All negative
CSF culture at 24 hours: moderate growth of a gray, white colony with a narrow zone of
beta-hemolysis
You would expect this organism to be
A) catalase positive. B) CAMP negative.
C) esculin negative. D) sodium hippurate negative.
Reaction velocity as a function of substrate concentration
Almonds contain high levels of healthy unsaturated fatty acids
Table salt.
Male to Female Sex Ratio at Birth vs. PCB Concentration in Maternal Serum