Microbiology and Parasitology Exam Questionswith 100% Correct Answers | Verified | Updated

Microbiology and Parasitology Exam Questionswith 100% Correct Answers | Verified | Updated When was the term microbiology first used - answer1860s What four areas of study are encompassed by clinical microbiology - answerViruses, fungi, bacteria, and parasites What is the difference between a pathogen and an opportunistic pathogen - answerPathogen: a bacteria capable of causing a disease Opportunistic pathogen: microorganisms that invade the body and cause illness only when the body's immune defense are impaired or absent How do bacterial pathogens cause host damage - answerThe damage is caused by bacterial growth in tissues or y the toxins bacteria produce What are the morphological types of bacteria - answerCoccus, bacillus, and spirochete What are the morphological forms of fungi - answerMolds and yeast What is a gram stain? - answerA test that uses a series of stains to differentiate the composition of their cell walls Gram positive- violet (retain the crystal violet stain) Gram negative- pink (lose the crystal violet and retain the safranin) What is the difference between aerobic and anaerobic bacteria - answerAerobic bacteria grow in the presence of oxygen Anaerobic bacteria grow in the absence or decreased levels of oxygen How are viruses different from microorganisms? Name 3 viral diseases - answerViruses are not living cells, and can only replicate by invading a cell, viruses can only contain either a DNA or RNA not both Epstein-Barr virus (mono), rubella, rhino