ATI RN
microbiology chapter 11 test bank Questions
Question 1 of 5
Which of the following viruses does not belong to family Paramyxoviridae:
Correct Answer: D
Rationale: The correct answer is D: Rubella virus. Rubella virus does not belong to the family Paramyxoviridae because it belongs to the Togaviridae family. The other choices, A (Measles virus), B (Respiratory syncytial virus), and C (Mumps virus) are all members of the Paramyxoviridae family. This classification is based on the genetic and structural characteristics of the viruses. Rubella virus is distinct in its genetic composition and replication cycle compared to the Paramyxoviridae family, making it the correct choice.
Question 2 of 5
Cytoplasmic membrane of the prokaryotes consists of:
Correct Answer: D
Rationale: The correct answer is D: All of the above. The cytoplasmic membrane of prokaryotes consists of phospholipids which form a lipid bilayer, providing structure and selective permeability. Proteins are embedded in this membrane, serving various functions like transport and signaling. Carbohydrates may also be present on the surface for cell recognition. Therefore, all three components (phospholipids, proteins, and carbohydrates) are essential parts of the prokaryotic cytoplasmic membrane. Option A, B, and C individually do not fully encapsulate the complexity and composition of the prokaryotic cytoplasmic membrane.
Question 3 of 5
Decontamination is defined as the
Correct Answer: B
Rationale: Decontamination is the reduction or removal of unwanted chemical or biological agents to make an area safe. This includes cleaning, disinfecting, or sterilizing to eliminate harmful substances. Choice A is incorrect as decontamination doesn't necessarily involve killing all microorganisms. Choice C is incorrect as it focuses on stopping growth, not removing existing contaminants. Choice D is incorrect as it specifically mentions vegetative organisms, which may not cover all types of contaminants that need to be removed during decontamination. Thus, the correct answer is B as it accurately describes the process of decontamination.
Question 4 of 5
Which of the following sites of the human body does not have a normal flora?
Correct Answer: D
Rationale: The correct answer is D: Blood. Normal flora refers to the microorganisms that naturally inhabit specific areas of the body. Blood is considered a sterile environment in healthy individuals, meaning it does not harbor any microorganisms under normal circumstances. In contrast, the intestine, skin, and vagina all have normal flora as they provide suitable environments for various microbial species to thrive. The presence of normal flora in these sites helps maintain a balance and protect against pathogenic invaders. Blood, being a vital and sterile fluid, is not meant to have any resident microbial populations.
Question 5 of 5
A 6-year-old child with suspected active tuberculosis process has undergone diagnostic Mantoux test. What immunobiological preparation was injected?
Correct Answer: A
Rationale: The correct answer is A: Tuberculin. The Mantoux test involves injecting tuberculin, a protein derivative of Mycobacterium tuberculosis, under the skin to check for a delayed hypersensitivity reaction in individuals exposed to TB. B: BCG vaccine is a live attenuated vaccine used for TB prevention, not for diagnostic testing. C: DTP vaccine is for diphtheria, tetanus, and pertussis, not TB. D: Tularinum is not a standard immunobiological preparation used for TB testing. Therefore, A is the correct choice for the Mantoux test.
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