Micro 260 Final Exam Review Questions and Answers Already Graded A+ 100% Verified!!!

Micro 260 Final Exam Review Questions and Answers Already Graded A+ 100% Verified!!! Which of the following is a correct way to express a measurement that has two significant digests? a. 0.030 b. .030 c.. 0.03 d. .03 - CORRECT ANSWER-0.030 Which of the following is the correct way to express the number 67001 in scientific notation a. 6.7 x 10^-4 b. 6.7001 x 10^-4 c. 6.7 x 10 ^4 d. 6.7001 x 10^4 - CORRECT ANSWER-6.7001 x 10^4 A patient's vaginal area has become infected such her secretions are now basic. This means the pH has? a. Must be below 3 b. Must be above 9 c. Increased d. Decreased e. none of these are correct - CORRECT ANSWER-Increased You know that a particular bacterium produced acid as in grows, so yo put it into a broth that is red in alkaline conditions and yellow in acidic conditions. After inoculation and growth you r medium is yellow, so you know that the pH range is ? a. 7-14 b. 7.1-14 c. 0-7 d. 0-6.9 - CORRECT ANSWER-0-6.9 How many muL this in 1mL a. 10 b. 100 c. 1000 d. 10000 - CORRECT ANSWER-1000mL Your professor writes "a cell". You know that the following must be true about this "cell"? a. It has organelles b. It has a nucleus c. It has a lipid bilayer d. All of these must be true - CORRECT ANSWER-It has a lipid bilayer What are "Koch's Postulates"? a. A way to test if a particular microorganism is causing a particular disease b. A statement about how diseases move between individuals c. A framework for understanding evolution d. A description of how all diseases are caused by microorganisms - CORRECT ANSWER-A way to test if a particular microorganism is causing a particular disease It is easy to assume that people in the past were idiots for not washing their hands or medical equipment, but what pivotal information or discovery was necessary before doing those actions made sense or could be explained? a. Development of humoral theory b. Development of evolutionary theory c. Creation of the microscope d. Creation of antibiotics - CORRECT ANSWER-Creation of the microscope A ______ is supported by multiple facts and has been tested repeatedly, but could still be shown to be false if new evidence facts are discovered? a. theory b. philosophy c. hypothesis d. fact - CORRECT ANSWER-theory Which of the following best describes the endometriosis? a. organelles come from cells engulfing one another b. cells come from parietal cells c. all life changes over time to adapt to its environment d. all cells have organelles - CORRECT ANSWER-Organelles come from cells engulfing one another A microorganism that is already living in your nose and not causing any signs of symptoms of disease, but this is also not giving you nay benefits, is most likely? a. parasitic b. opportunistic c. mutualistic d. commensalistic - CORRECT ANSWER-commensalistic a microorganism that always cause serious diseases is most correctly classified as a. secundus b. primary c. mortal d. capital - CORRECT ANSWER-primary you see that a disease cycle diagram has line going between two adults. This would indicate a. vertical transmission b. vector transmission c. indirect transmission d. horizontal transmission - CORRECT ANSWER-horizontal transmission you see a disease cycle diagram showing a predictable member of sick people every spring in on city. a. an epidemic occurrence b. an endemic occurrence c. a sporadic occurrence e. a pandemic occurrence - CORRECT ANSWER-an endemic occurrence Many patients begin coming infected with a strange new bacterium. Every one of the patients was recently bitten by a mongoose. From all of this you can correctly infer that the disease a. uses the mongoose as a reservoir b. must be solely vector-borne c. is transmitted vertically d. is a pandemic - CORRECT ANSWER-uses the mongoose as a resevoir you see a bacterium with a tight cluster of flagella coming out of one end, so you correctly describe it as being? a. peritrichous b. momtrichous c. lophotrichous d. amphitrichous - CORRECT ANSWER-lophotrichous you see a bacterium with flagella coming out all over, so you correctly describe it as being? a. peritrichous b. momtrichous c. lophotrichous d. amphitrichous - CORRECT ANSWER-peritrichous