BIO 250L Microbiology (BIO250L)

Which bacterial sample(s) contain(s) Staphylococcus aureus? Select one: a. None of the above b. Unable to determine from this set of results c. C d. A, B, and D Feedback The correct answer is: None of the above Question 4 Which of the following lists of disease-causing agents is arranged from smallest to largest? Select one: a. virus, bacterium, protozoan, helminth b. virus, bacterium, helminth, protozoan c. bacterium, virus, helminth, protozoan d. helminth, protozan, bacterium, vi...

Why do you think it is important to identify a bacterial disease in a patient before prescribing any antibiotic treatments? (Be specific.) Because each bacterium is unique, each bacterial disease requires a unique antibiotic treatment.So there is need to determine the name of the bacterial disease based on its symptoms and develop a specific antibiotic treatment for it. For example, if penicilin is recommended to a patient with an illness caused by gram-negative organisms, the antibiotic w...

Why is differential media typically inoculated with isolated colonies that have been previously cultured on general growth media? The general growth media used for the isolation of microorganisms from unknown clinical or non-clinical samples is referred to as differential media because the presence of indicators within the culture media allows for the growth of bacteria with distinct characteristics. 3. Use a textbook or a reputable internet source (such as ) to research and describe a sce...

BIO 250L Microbiology Lab 4 Selective Media & Agar: Questions With 100% Correct Answers | Latest Update Graded A+. Why is cow manure used as a potential source of starch-degrading bacteria? (If you are not familiar with the process of digestion in cows, use a reputable internet source to inform your answer.) Because cows eat a high-fiber diet that includes starch, the feces of a cow manure is low in protein but high in starch. 2. What are some other potential sources of starch-degrading bac...

BIO 250L Lab Quiz Final Questions With Correct Answers Latest Update Graded A+. Which bacterial sample(s) contain(s) Staphylococcus aureus? Select one: a. None of the above b. Unable to determine from this set of results c. C d. A, B, and D Feedback The correct answer is: None of the above Question 4 Which of the following lists of disease-causing agents is arranged from smallest to largest?

BIO 250 LAB 3 Quantification of Cultured Microorganisms | Questions With Correct Answers 2023/2024 (Latest Graded A+). If there are 60 colonies present on a 10 serial dilution plate, approximately how many colonies should be present on a 10 serial dilution plate? Select one: a. 120 b. 6 c. 600 d. 30 The correct answer is: 6 You obtain the following results after plating a serially diluted bacterial sample onto four nutrient agar plates: -2 -1 -2 Question 6 Correct Mark 4.80 out ...

BIO 250 LAB 3 Quantification of Cultured Microorganisms | Questions With Correct Answers | Latest Graded A+. Which quantitation methods can be used to determine the number of living and dead cells in a sample? Select one: a. turbidity determination and direct microscopic count b. direct microscopic count and direct plate count c. filtration and direct plate count d. filtration and turbidity determination The correct answer is: turbidity determination and direct microscopic count Which qu...

BIO 250L Lab Quiz 4 | Questions With Correct Answers | Latest Update Graded A+. Which sample(s) contain(s) Gram-negative bacteria that are unable to ferment lactose? Select one: a. B and C b. Unable to determine from this set of results c. A d. D Feedback The correct answer is: D Question 2 Beef extract can be added to complex media in order to provide a source of Select one: a. amino acids. b. sodium chloride. c. polymerization agent.

BIO 250L Lab 3 Structure & Microscopy (Microbiology) Questions With Correct Answers | Latest Update Graded A+. How does crystal violet enhance the visualization of microbial features? Crystal violet improves microbe visualization by creating a contrast between the slide and the germs, making it easier to visualize and study these bacteria and other microbes.Furthermore, crystal violet penetrates the cell membrane and walls, dyeing the microbiological characteristics. 2. What are some of the...