Vibrio cholerae - Samenvattingen, Notities en Examens

MLT Microbiology Exam Questions with Correct Answers What organism is NOT OXIDASE POSITIVE? - Answer-Yersinia enterocolitica Which organisms are oxidase positive? - Answer-Aeromonas hydrophilia, Pseudomonas aeruginosa, Vibrio parahaemolyticus Rice water stools often contain a pure culture of what organism? - Answer-Vibrio cholerae What is the reagent used for the string test? - Answer-0.5% sodium deoxcholate What allows visibility of acid production by oxidizers in oxidation fermen...

Vibrio cholerae correct answers Gram negative comma-shaped & flagellated rods. 2 chromosomes, pH sensitive, halophilic, oxidase +. 2-3d incubation; produces rice water stools with dehydration (sunken eyes and cool skin). Electrolyte imbalance leads to muscle cramps. CT is a complex A-B toxin; A subunit translocates to ADP ribosylate the Gs subunit. cAMP levels rise, leading to water loss. Quorum sensing influences expression of virulence. At low density LuxO-P activates sRNAs that target HapR, t...

MMSC 438 EXAM 2 SET Q&A 1. A bloody stool sample is received in the laboratory and plated to routine stool culture media. The following results arerecorded by the laboratory scientist 24 hours after plating the patient sample:Blood agar: beta-hemolytic coloniesMacConkey: Only lactose fermenting colonies are presentSMAC: 2+ clear colonies presentFurther testing reveals: Oxidase negative, indole positive, MUG negative, motileThe most likely identification is: A. Yersinia enterocolitic...

Each of the following is inoculation of normal biota to a newborn except _______. Select one: a. All of the choices are correct. b. breastfeeding c. the birth process through the birth canal d. contact with hospital staff e. bottle feeding Which of the following is transmission of disease from mother to fetus? Select one: a. Droplets b. Vector c. Fomites d. Direct e. VerticalAn infectious agent already existing on or in the body is called ______. Select one: a. an enterotoxin b. ...

Microbiology Review Practice Test. identify which of the following are external structures used primarily for direct contact interactions with other cells a ) Flagella b) Fimbriae c) Cilia d) Pili - CORRECT ANSWER PILI, Fimbriae Which of the following describes movement towards or away from light ? 1) Phototaxis 2)Chemotaxis - CORRECT ANSWER Phototaxis Which of the following bored through the stomach lining and causes gastric ulcers? a) Klebsiella pneumoniae B) Streptococcus...

Microbiology - A branch of biology, that deals with all members of the microbial world Classes of Microbiology - Bacteria, Fungi, Protozoa, Algae and "viruses." Beneficial Bacteria - The majority of the bacteria are beneficial. Only about 3% are harmful. Examples of benefits we get from bacteria and fungi include - Bacteria and fungi decay organic matter. Most antibiotics are made by bacteria and fungi. Normal flora contribute to health. Intestinal bacteria are involved in pr...

MICROBIOLOGY EXAM 1 WITH COMPLETE SOLUTIONS 100% One important ability that all cells must have to survive is maintaining a relatively stable internal environment. This is called: - correct answer homeostasis __________ microscopy uses UV light to excite electrons to a higher energy level. - correct answer fluorescence Which scientists were the developers of the cell theory that all organisms are made of cells? - correct answer Schleiden and Schwann All the following are characteris...

BIO 107 EXAM 1 2024 QUESTIONS WITH DETAILED VERIFIED ANSWERS | A+ GRADE ASSURED Environment a collection of systems including all living and nonliving things on Earth that sustain all life system made up of interacting components that produce patterns of behavior over a period of time, like a household ecosystems The environment is made up of many natural systems ecosystem services The process by which natural environments provide lifesupporting resources What roles do models play in te...

Robert Hooke Correct Answer developed the first microscope, used to look at plant cells, first to use the term cells-- looked like what monks lived in Anton Van Leeuwenhoek Correct Answer father of microbiology First to look at living material-- scraped his teeth and saw that sick people had different microogranisms than his did Carolus Linnaeus Correct Answer binomial nomenclature Schleiden and schwann Correct Answer formulated the cell theory-- cells are fundamental unit of life and ...

Comprehensive Review Science Micro, Path, Anatomy, Embalming (Final State Exam) 2024/2025 Updated Rickettsia - CORRECT ANSWER--Intracellular Parasites -Insect invasion -Coccobacillary shape Ricksettsia prowazekii - CORRECT ANSWER--Typhus Fever (Epidemic Typhus) -Entry (Louse Bite) -Exit (None) Rickettsia rickettsii - CORRECT ANSWER--Rocky Mountain Spotted Fever -Bite of the Tick -Entry (Bite) -Exit (None) Rickettsia typhi - CORRECT ANSWER--Endemic Typhus -Flea Bite -Entry (Bite)...