A 67- year old patient with severe sepsis undergoes a full infectious work-up upon admittance to the intensive care unit. Cultures of urine, blood, sputum and cerebral spinal fluid are obtained. The cultures do not yield a specific organism, so further analysis of the sample is done to determine the characteristics of the microorganism. The metabolic processes are analyzed in the lab Biochemical testing reveals that the organism further reduces nitrite to produce nitrous oxide. Based upon this byproduct, which of the following is the most likely catabolic pathway utilized by this organism?
a) aerobic respiration
b) anaerobic respiration
c) fermentation
d) aerobic and anaerobic respiration, as weel as fermentation, cal all lead to the production of nitrous oxide
Answer: b) anaerobic respiration
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Which cranial nerve performs both sensory and motor functions?
a. olfactory b. oculomotor c. glossopharyngeal d. optic
Molecules spontaneously move from an area of higher concentration to an area of lower concentration in a process known as
A) conduction. B) solution. C) evaporation. D) diffusion.
Selective Media
A. allows the growth of fastidious microbes through the addition of certain growth enhancers B. supports the grouping of microbes based on different characteristic demonstrated in the media C. Supports the growth of most nonfastidious microbes D. Supports the growth of one type or group of microbes but not another
All of the following are sources of variation in the inherited traits of a population except: a. UV radiation b. crossing over c. independent assortment d. sexual reproduction e. mitosis
What will be an ideal response?