ATI RN
microbiology an introduction tortora test bank Questions
Question 1 of 5
In the sixteenth century a father-and-son team, by the name of __________, produced a compound microscope consisting of a simple tube with lenses at each end.
Correct Answer: C
Rationale: The correct answer is C: Janssen. In the 16th century, Zacharias Janssen and his father Hans Janssen are credited with inventing the compound microscope. They constructed a simple tube with lenses at each end, allowing for magnification of small objects. This innovation laid the foundation for the development of modern microscopes. Van Leeuwenhoek is known for his contributions to microbiology but did not invent the compound microscope. Semmelweis is known for his work in handwashing and preventing infections. Hooke made significant contributions to microscopy but did not invent the compound microscope.
Question 2 of 5
How many types of herpes simplex virus are there?
Correct Answer: B
Rationale: The correct answer is B because there are two types of herpes simplex virus: HSV-1 and HSV-2. HSV-1 typically causes oral herpes, while HSV-2 usually causes genital herpes. Choice A is incorrect because there is more than one type. Choices C and D are also incorrect as there are only two types of herpes simplex virus known to infect humans.
Question 3 of 5
Which are the most suitable materials for isolation of polio viruses
Correct Answer: D
Rationale: The correct answer is D because polio viruses are primarily found in the gastrointestinal tract and respiratory secretions. Feces, nasopharyngeal swabs, and cerebrospinal fluid are the most suitable materials for isolating polio viruses due to their presence in these body fluids. Feces contain the virus shed from the intestines, nasopharyngeal swabs collect respiratory secretions where the virus may be present, and cerebrospinal fluid is important for detecting the virus in cases of neurological complications. Choices A and B include irrelevant body fluids that are not typically associated with polio virus transmission. Option C is too limited as the virus can also be present in respiratory secretions and cerebrospinal fluid, not just feces.
Question 4 of 5
All bacteria are __________ cells.
Correct Answer: B
Rationale: The correct answer is B: prokaryotic. Bacteria are prokaryotic cells because they lack a true nucleus and membrane-bound organelles. They have a simple cell structure with genetic material floating freely in the cytoplasm. Choice A (eukaryotic) is incorrect because eukaryotic cells have a nucleus and membrane-bound organelles. Choice C (diploid) is incorrect as bacteria do not have a defined ploidy level like diploid organisms do. Choice D (haploid) is also incorrect as bacteria do not have a true haploid or diploid state due to their lack of a defined nucleus.
Question 5 of 5
Adenoviral infections are restricted only to the upper respiratory tract:
Correct Answer: B
Rationale: The correct answer is B: FALSE. Adenoviral infections are not restricted only to the upper respiratory tract; they can also affect the gastrointestinal tract, eyes, and other organs. Adenoviruses are known to cause a wide range of illnesses beyond just respiratory infections. Therefore, option B is correct. Option A is incorrect because it states that adenoviral infections are restricted to the upper respiratory tract, which is not true. Option C is incorrect because there is no circumstance where adenoviral infections are solely limited to the upper respiratory tract. Option D is also incorrect as the correct answer is B.
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