Catalase - Study guides, Class notes & Summaries

Chlorine and iodine are classified as - halogens Obligate aerobes can only live - when oxygen is present Microorganism found thriving in a the permafrost region of the Arctic are - pychrophiles Facultative halophiles - tolerate an elevated salt concentration in the environment Most bacteria prefer to grow at which pH range? - Most bacteria prefer to grow at which pH range? The spectrophotometer is used in microbiology to - indirectly measure microbial growth Pyrimidine dimers are formed i...

AAB MT Microbiology Exam Questions and Answers 100% Pass What term describes the morphology of organisms that vary in shape and size? - ANSWER-Pleomorphic Capsules are the basis of which test? - ANSWER-Serotyping A mucoid colony on blood agar medium indicates that which of the following characteristics may be present? - ANSWER-Organism has a capsule. What are dark staining granules called? - ANSWER-Metachromatic Which of the following organisms are non-motile? - ANSWER-Shigella and Kleb...

Microbiology Lab Final Exam Questions and Answers 100% Pass What does a pure culture contain? A single type of microorganism. Why is the inoculating loop sterilized before use? To eliminate any contaminating organisms. What is the first step in preparing a bacterial smear? Applying a small drop of water to the slide. What does the acid-fast stain detect? Bacteria with waxy cell walls, such as Mycobacterium. What is the purpose of incubation in bacterial culture growth? T...

Microbiology GCU (Lab Exam) Final Review Questions & Answers 2024/2025 Selective Medium - ANSWERSA proprietary membrane-based assay developed by Fluka Analytical that tests for bacteria that cause urinary tract infections and differentiates them based on their color reaction on the membrane. Differential Medium - ANSWERSA growth medium that contains a component(s) that allows one to tell the difference between organisms that grow. Is mannitol salt agar selective or differential? - ANS...

BIOD 171: Essential Microbiology Module 5 Exam. Latest Update 2022/2023(Portage Learning).With 100% correct Questions and Answers Question 1The concept of treating all samples, whether known or unknown, as potentially hazardous (or pathogenic) materials is known as .Question 2List at least 3 observations a researcher would be sure to note while assessing an unknown microbial sample.Question 3While observing an unknown sample of limited amounts, a researcher must determine the following observat...

BIOD 171 M5: Module 5 Exam - Requires Respondus LockDown Browser + Webcam The concept of treating all samples, whether known or unknown, as potentially hazardous (or pathogenic) materials is known as . Your Answer: universal precautions Universal precautions List at least 3 observations a researcher would be sure to note while assessing an unknown microbial sample. Your Answer: size and shape, motility, chemical reactions, gram stain, color change A lab researcher would be certain to ...

NBME MICROBIOLOGY REVIEWED EXAM 2023/2024 India ink for - CORRECT ANSWER-Cryptococcus neoformans Silver stain for - CORRECT ANSWER-Fungi, Legionella, H. pylori Thayer Martin media for - CORRECT ANSWER-N. gonorrheae, N. meningitidis Tellurite plate for - CORRECT ANSWER-C. diphtheriae Löffler's media for - CORRECT ANSWER-C. diptheriae Charcoal yeast media for - CORRECT ANSWER-Legionella Sabouraud's agar for - CORRECT ANSWER-Fungi Obligate intracellulars - CORRECT ANSWER-Rickettsia ...

Coliform - rapidly ferment lactose, are part of normal microbiota, may be opportunistic, aerobic or facultatively anaerobic. Found in soil and plants. Presence in water= impure water and poor sewage treatment 3 types of antigens used to serotype enteric bacteria - O-outer membrane K- capsular antigen H- flagellar lancefield typing - grouping catalase negative and coagulase negative bacteria based on carbohydrate composition of bacterial antigens found on cell walls. Used to organize vari...

BIO 171 Module 5 Exam 2023 (Essential Microbiology) - Questions and Answers Graded A+. As Streptococcus is catalase negative would it thrive or die in the presence of peroxides? Why? Streptococcus wouldn't survive in the presenc of peroxides, as it is unable to breakdown peroxides (catalase negative). Peroxides would damage its cellular integrity, causing it to lysis. M5: Module 5 Exam - Requires Respondus LockDown Browser + Webcam: Essential Microbiology with Lab-2021-Martinez Page 5 of...

Microbiology Lab Exam 1 Questions and Answers Graded A+ What does a positive result in a TSI (Triple Sugar Iron) test look like for glucose fermentation? The butt of the tube turns yellow, indicating glucose fermentation and acid production. What is the result of a positive test for urease activity? The medium turns pink, indicating that the bacterium produces urease and hydrolyzes urea. What does a positive catalase test look like? Bubbles appear when hydrogen peroxide is applied...