Vibrio - Study guides, Revision notes & Summaries

Lack a nucleus or membrane bound organelles, usually unicellular. Smaller and simpler than most eukaryotic cells. Contain two types of domain Bacteria and Archaea. - ANSWER Prokaryotic cells Ridged cell wall contains peptidoglycan. Includes a nucleoid (no nucleus) with no membrane- bound organelles. Multiply by binary fission - cell enlarges then divides - ANSWER Bacteria Bacterial shapes: Coccus Rods (bacillus) Coccobacillus Vibrio Spirillum Spirochete - ANSWER - Coccus - spherical ...

Irene Gold Boards Part I- Microbiology exam questions with correct answers /images Illustration START PAGE 2: Medically Important Gram-Positive Bacteria Cocci Micrococcus Streptococcus Aerococcus 'Mike cocked (micrococcus) the gun and was positive (gram +) he pulled the trigger, but a bullet didn't fly through the air (aerococcus). He had to strip (streptococcus) the weapon to find the error' Gram Positive Bacilli (9) Bacillus/Clostridium Corynebacterium Lactobacillus Listeria Acti...

BIOL 235 Lab Exam Questions With 100% Correct Answers Which setting is best to view bacteria in a light microscope? Darkfield Why do bacteria move? - To move towards attractive environments - Move away from harmful environments - To seek other bacteria and create colonies Which bacteria is corkscrew shaped? (long and squiggly) Spirochete Which bacteria is comma shaped? Vibrio Which bacteria has two round spheres? Diplococci Which bacteria is rod shaped? Bacillus...

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...

According to 2010 revised estimates by the CDC, the number of deaths annually related to foodborne illnesses, is estimated to be: correct answer: 5,000 Although the Norwalk-like virus is considered an extremely common cause of foodborne illness, it is rarely diagnosed. According to Marriott, approximately 66% of all foodborne illnesses in the US are caused by: correct answer: bacteria When discussing infective dose, exposure to 2 or more substances can cause this effect correct answer: ...

Practice Questions - CDR Exam with 100% Complete Solutions What is the hormone that lowers blood glucose?* A. Glucocorticoids B. Glucagon C. Somatostatin D. Insulin - Answer- D. Insulin What is the precursor for serotonin? Tryptophan Tyrosine Niacin Threonine - Answer- Tryptophan Which of the following can be caused by not washing your hands, found in reheated foods, and cannot be destroyed by cooking? a. Listeria Monocytogenes b. Staphylococcus Aureus c. Vibrio/Vulnificus d. Ca...

Food Safety Manager Exam/ 145 Questions & Verified Answers/ Contains Terms like: A bacterial infection found on raw poultry and eggs is a) Salmonella b) Vibrio c) Staphylococcus Aureus d) Hepatitis A - Answer: a) Salmonella A bacterial infection is caused by a) a virus surviving on a counter b) consuming live bacteria that grows in the body c) consuming the toxin produced by a bacteria d) a parasite living in the food consumed - Answer: b) consuming live bacteria that grows in...

Pathogens -microorganisms that cause illness two types of pathogens -one that make you sick when you eat them -toxin (poison) producing ones that make you sick symptoms of a foodborne illness -diarrhea -vomiting -fever -nausea -abdominal cramps -jaundice *varies from person to person and from illness the big six -highly contagious - singled out by FDA - can cause severe illness 1. shigella spp. 2. salmonella typhi 3. nontyphoidal salmonella 4. shiga toxin-prod...

What is the morphology of Vibrio spp. bacteria? A. Bacillus B. Coccus C. Spirochete D. Coccobacillus - Answer-A. Bacillus All of the following are important functions of bacterial fimbriae, except: A. Attachment B. Locomotion C. Ion transport D. Antibiotic resistance - Answer-A. Attachment Bacterial endospores are: A. Resistant to heat and desiccation B. A form of asexual reproduction C. A consequence of mating D. Highly susceptible to antiseptics - Answer-A. Resistant to...

REHS WastewaterSludge and scum accumulation, and the appearance of particles of solids in the effluent from a septic tank is an indication of what? a. a failure in the absorption field b. a septic tank in need of cleaning c. a water line leak d. the need to replace the septic tank - correct answer a septic tank in need of cleaning Which of the following soils would be most suitable for subsurface absorption of wastewater? a. mottled brown and red soil b. blue soil c. grayish soil ...