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WGU D311 MICROBIOLOGY OA EXAM LATEST COMPLETE 200 QUESTIONS AND DETAILED ANSWERS LATEST UPDATE
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WGU D311 MICROBIOLOGY OA EXAM LATEST COMPLETE 200 QUESTIONS AND DETAILED ANSWERS LATEST UPDATE
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Page 1 of 26 1 WGU D311 MICROBIOLOGY OA EXAM LATEST 2024 -2025 COMPLETE 200 QUESTIONS AND DETAILED ANSWERS LATEST UPDATE QUESTION: What is the significance of microorganisms containing a thick coat of peptldogiywn within the cell wall? - ANSWER -Microorganisms containing a thick coat of peptidoglycan within the cell wall are typically classified as gram -positive bacteria. QUESTION: Why are viruses considered aceilular? - ANSWER -They cannot reproduce without a host. QUESTION: What is the defining characteristic of eukaryotes? - ANSWER -They have a nucleus. QUESTION: Which microorganism can cause vaginal yeast Infections and oral thrush? - ANSWER -Fungi QUESTIO N: Why can It be difficult to determine the etiologic agent of a disease? - ANSWER -
Some signs and symptoms can be caused by many different etiologic agents. QUESTION: What kind of staining technique Is the acid -fast stain? - ANSWER - Page 2 of 26 2 QUESTION: A doctor pr escribed antibiotics for a patient complaining of runny nose. fever. and aches and pains. Which type of infection did the doctor suspect? - ANSWER -The doctor likely suspected a viral infection because antibiotics are not effective against viral infections. QUESTION: A healthcare professional is treating a patient who developed a yeast infection after taking antibiotics. What type of medication should be prescribed to this patient? - ANSWER -
Antifungals QUESTION: Which structure promotes motility in Proteus . Shigelia. and Salmonella species. all of which can cause serious disease in humans? - ANSWER -Presence of flagella QUESTION: Which bacterial virulence factor allows a strain to resist phagocytosis, increasing the organism's virulence? - ANSWER -Capsule pr oduction QUESTION: Why is treating Haemophilus influenzae difficult? - ANSWER -The capsule is antiphagocytic. QUESTION: How do pili aid pathogens in causing disease? - ANSWER -They cause pathogens to adhere to host cells. QUESTION: Which virulence factor allows pathogens to penetrate the dermis and invade the body? - ANSWER -Bacterial enzymes Page 3 of 26 3 QUESTION: A bacterium from a deep -sea hydrothermal vent has been cultured. Which staining technique should be used to begin the process of species identification? - ANSWER -Gram staining QUESTION: What does the presence of a clear area around a cell staine d with India ink indicate about the cell? - ANSWER -The cell has a capsule. QUESTION: How do basic stains work? - ANSWER -The positively charged stain is attracted to the negatively charged portion of the cell. QUESTION: Which staining technique is used to distinguish bacteria based on their ability to produce structures that can survive extreme heat stress? - ANSWER -Endospore stain QUESTION: Which aspect of a staining protocol enables dye to penetrate an endospore? - ANSWER -Heat QUESTION: Why are the rel ationships between pathogenic microbes and their hosts considered parasitic? - ANSWER -The microbe benefits from the interaction while the host is harmed.
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