Virulence Study guides, Class notes & Summaries

Are Viruses Living or Nonliving? They are only considered living when they are inside of a host cell, using their resources and energy. Outside of a host they are considered intert. When are Viruses considered to be "alive"? When they are inside of a host cell. When inside, their nucleic acid (ONLY RNA OR DNA) become active. *Virus replicates Obligatory Intracellular Parasites Require livinghost cell in order to multiply - Such as Viruses. Defining a Virus 1) Contains 1 Nucleic Aci...

OpenStax Microbiology Test Bank Chapter 9: Microbial Growth Page 1 of 17 Chapter 9: Microbial Growth * = Correct answer Multiple Choice 1. Bacteria most commonly reproduce using which of the following methods? A. binary fission* B. budding C. meiosis D. mitosis Difficulty: Easy ASM Standard: N/A 2. Which structure separates new daughter cells in binary fission? A. the crescent B. the division septum* C. the FtsZ D. the spindle apparatus Difficulty: Easy ASM Standard: N/A 3. W...

Talaros Foundations in Microbiology FINAL Quiz Test Bank with Question and Answers GRADED A+ 2023 Staphylococcal aureus - description correct answers Bacterium Gram + non motile facultative-aerobe round /cluster Staphylococcal aureus - diagnosis correct answers culture and sensitivity. Staphylococcal aureus - virulence correct answers hyaluronidase: destroy host tissue staphylokinase: digest blood clots lipase: colonize oily skin penicillinase: penicillin resistance leukocidin...

C453 Clinical Microbiology Study Questions With Answers (Updated 2022) A+. Describe the general characteristics of bacteria by answering the following questions. a. Are bacteria prokaryotic or eukaryotic? Why? Prokaryotic because their genetic material (DNA) is not housed within a true nucleus. b. Single-celled or multicellular? Why? Usually unicellular c. Can they be seen with the naked eye? Why? No; typically they are about 1um (need to be at least 100um to be visible without a microscope...

Virulence characteristics, unique properties, and diseases caused by: Mycobacterium tuberculosis, - -virulent strains contain cord factor (cell wall component) which is necessary to cause disease -3 types: primary (results from initial infection), secondary (reestab. of active infection after period of dormancy), disseminated (when infection spreads thru body) -high risk ppl are those who contact infected persons and those with immunodeficiencies (HIV--combo has 90% chance of death) -diagno...

The ability to cause disease is __________. Correct Answer-pathogenicity Why is there such a difference between the flora in the duodenum and that in the ileum? Correct Answer-There is a large pH difference between these regions of the small intestine. Factors that enhance an organism's ability to adhere to host tissues include __________. Correct Answer-fimbriae Certain traits that allow pathogens to create infection and cause disease are termed Correct Answer-virulence factors. Wh...

PUBH 6011 Week 6 Exam with Complete Solutions Microbes - Answer-microscopic organisms, most microbes are not pathogens but some are, we need a microscope to view them all. three kingdoms (domains) - Answer-bacteria, archaea, eukarya Microbiome - Answer-all of the microorganisms that live in a particular environment, such as a human body, the microbiome is more medically accessible and more manipulable than the human genome. Many are beneficial. uses for microbes - Answer-we make ferme...

PATHO QUIZ 3 QUESTIONS AND ANSWERS What are the factors that influence the capacity to cause disease? {{Correct Ans:- Communicability Infectivity Virulence Pathogenicity Toxigenicity Immunogenicity Portal of Entry The ability to spread from one individual to another : A) Communicability B) Infectivity C) Virulence D) Pathogenicity E) Toxigenicity F) Immunogenicity G) Portal of Entry {{Correct Ans:- A - Communicability The ability of a pathogen to invade and multip...

Chain of Infection CORRECT ANSWER-1)Infectious agent= organism with ability to cause disease; greater virulence, invasiveness, and pathogenicity => increased odds of infection 2) Reservoir: place where microbes can persist and reproduce 3) Portal of Exit: way for microbe to leave the reservoir 4) Mode of transmission: method of microbe transfer from one place to another 5) Portal of entry: opening that allows microbe to enter host 6) Susceptible host: Lacks immunity or physical resistanc...

infection Correct Answer-invasion of the body by microbes and the proliferation (growth in numbers) of those microbes virulence Correct Answer-how strong the microbe is incubation, prodromal, full stage of illness, convalescent Correct Answer-stages of infection incubation Correct Answer-this stage of infection is the time between invasion and appearance of infection - varies prodromal Correct Answer-this stage of infection is the early S&S of disease - may be contagious and not awar...