Facultative anaerobe - Study guides, Class notes & Summaries

Microbiology Chapter 9 Test Bank 100% SOLVED Micrococci are facultative halophiles. In Figure 6.1, which line best depicts the growth of M. luteus in a nutrient medium containing 7.5% NaCl? A) a B) b C) c - ANSB The addition of which of the following to a culture medium will neutralize acids? A) Buffers B) Sugars C) pH D) Heat E) Carbon - ANSBuffers Salts and sugars work to preserve foods by creating a A) Depletion of nutrients. B) Hypotonic environment. C) Lower osmotic pressur...

1. Proper media for culture of a urethral discharge from a man include: a. sheep blood and phenylethyl alcohol agars b. eosin-methylene blue and sheep blood agars c. thioglycollate broth and chocolate agar d. chocolate and modified Thayer-Martin agars correct answer: d 2. A sheep blood agar plate inoculated with 0.001 mL of urine grows 70 colonies of Staphylococcus aureus. How many colony forming units per mL of urine should be reported? a. 70 b. 700 c. 7,000 d. 70,000 correct answe...

Lab Exam 2 - CMMB 343 How is an H&L Glucose test prepared? - correct answer Stab-inoculation How is a litmus milk test prepared? - correct answer Loop inoculation How is a nitrate respiration test prepared? - correct answer loop inoculation How is an MR-VP test prepared? - correct answer loop inoculation -> wait 24 hours -> perform methyl-red test or Voges-Proskauer test When oxygen is the final electron acceptor, it is considered a: - correct answer nutrient How is a ...

sterile locations of the body correct answers Blood, deep tissues, lungs, synovial fluid, and cytoskeletal fluid staphylococci characteristics (>6) correct answers Gram+; hardy facultative anaerobes; mesophilic (temp/pH); resistant to drying, salt (10%), heat; membrane: peptidoglycan is lysozyme-resistant but lysostaphin-sensitive, techoic acids trigger inflammation; MRSA and VRSA diseases caused by staphylococci (6) correct answers skin abscesses (on the surface); cellulitis (in the ti...

Both B and C. Abscesses and Food Poisoning - ANSWERStaphyloccocus aureus is known for causing which of the following: Anaerobes, Aerobes - ANSWEROrganisms that are ____ must obtain their oxygen from oxygen containing compounds, while ____ need free atmospheric oxygen. False - Rarely transmitted via infected objects. - ANSWERGonorrhea is often transmitted via infected objects because the organism Neisseria gonorrhea survives well outside the body. True or False? All of the above. - ANSWE...

Define the concept of universal precautions (short answer) - Universal precautions means any and all samples, whether known or unknown, are to be treated as potentially hazardous (or pathogenic) materials List at lease 3 observations a researcher would be sure to note while assessing and unknown microbial sample (short answer) - Need to note: 1. Size and shape 2. Any observable motility 3. Gram status (positive or negative) While observing an unknown sample of limited amounts, a research...

MICR130 Module 4 Test Questions with Answers Which of the following is NOT a direct method to measure microbial growth? - Answer-Metabolic activity Patients with indwelling catheters are susceptible to infections because ____. - Answer-biofilms develop on catheters Which of these microbes is most likely to grow at room temperature (25 C)? - Answer-Psychrotroph Look at the attached figure. Which of these growth curves best describes the growth of a psychrophile at room temperature (25 C...

A bacterial species that cannot tolerate the presence of oxygen and will only grow in the absence of oxygen is classified as a. obligate aerobe b. obligate anaerobe c. facultative aerobe d. mcroaerophile e. aerotolerant anaerobe b A bacterial isolate is subcultured to two blood agar plates, one of which is incubated in an anaerobe jar, and the other is incubated on a shelf in the incubator. After incubation, growth is observed on the plate from the anaerobe jar, but there is no growth on the p...

What is microbial growth? - increase in the number of cells What are the two general requirements for microbial growth? - physical: temperature, pH, osmotic pressure chemical: types of nutrients, growth factors A bacterium has just encountered a new environment. What are its three basic choices with respect to growth in this new environment? - Adapt- allows growth to continue Tolerate- survive without growth DIE What are a bacterium's cardinal temperatures? Do all bacteria have the same...

ASCP Microbiology Exam (Answered) With Complete verified Solution Gemella Gram positive diplococcus. Thrive best at high partial carbon dioxide pressure. Facultative anaerobe. Oxidase negative. Catalase negative. In mucous membranes of humans and animals and upper digestive tract. Leuconstoc Gram positive cocci often in chains. Intrinsically resistant to vancomycin. Catalase negative. Are generally slime forming. Responsible for cabbage fermentation. Acanthamoeba A genus of amoe...