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As a laboratory assistant you were asked to estimate the total number of bacteria in the urine of a person with a urinary tract disorder. After other laboratory tests, you were left with less than 0.1 ml of urine to work with. A standardized inoculating loop (0.01 ml) was available, so you transferred a loopful of the sample to 9.99 ml of a sterile saline solution. You then transferred 5 ml of this dilution into 20 ml of a new sterile saline solution. Finally, you took some of the last diluted urine solution and plated 0.01 ml and 0.1 ml (each in duplicate). 37 and 33 colonies were counted for the 0.01 ml plating and 309 and 341 for the 0.1 ml plating. How many bacteria were present in 1 ml of urine?
A persons normal tidal volume is 400 mL with a dead space of 100 mL. The respiratory rate is 12 breaths/min. The person is placed on ventilator for surgery and the tidal volume is 700 with a rate of 12. What is the approximate alveolar PCO2 for th..
What is the importance of membranes in the body? What are the three types of membranes? Compare and contrast each type. What homeostatic imbalances may occur relating to membranes, and what are their implications?
What is your opinion of the Biology course? What suggestions can you offer for improvement of this course for future students
Describe the structure and function of each of the eukaryotic organelles. Explain the importance of membrane structure and function in the organization of living processes within cells
Why may selfing be selected for in nature yet still be an ‘evolutionary dead end'. How many kilocalories must Janine eat each day to maintain her present body weight.
Read "Theory, Evidence and Intervention Mapping to Improve Behavior Nutrition and Physical Activity Interventions" by Burg, et al. 2005, Discuss the following points in your thread.In this position paper the authors debate the proper use of behaviora..
Discuss the drug legalization debate. What are the arguments being presented for and against the legalization of drugs? What re some possible compromises? What do you think is the best option?
The gene (cv) is recessive and is known to be 13.7 Map units from the beginning of the chromosome. The recessive gene (f) is 51.7 map units from the beginning of the chromosome.
What is the proper placement of the Ctenophora? Phylogeny wise
Why is a urinalysis an important tool in a routine physical? Suggest an explanation for blood in the urine. What is diabetes? How are type 1 and type 2 different?
In garden peas, grey seed coat color is dominant to white seed coat color. In the following cross, the phenotypes of the parents and offspring are known, but the genotypes are unknown.
ltbrgtgenetic engineering may be defined as the ability to transfer a gene or genes from one organism to another in a
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