Catalase - Study guides, Class notes & Summaries

OpenStax Microbiology Test Bank Chapter 21: Skin and Eye Infections * = Correct answer Multiple Choice 1. The top part of the skin, which is exposed to the environment, is called: A. adipose tissue B. the dermis C. the epidermis* D. the hypodermis 2. Which bacterial genus is commonly associated with acne? A. Candida B. Clostridium C. Propionibacterium* D. Salmonella 3. Papillomas are also known as: A. comedones B. pustules C. urticaria D. warts* 4. Tinea corporis is ...

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...

NBME CBSE REAL EXAM 2024 200 APPROVED QUESTIONS AND ANSWERS (USMLE step 1)MEDICAL EXAMINATION LATEST UPDATES 2024 A+ GRADE. 70yo M dies in a motor vehicle collision. Was undergoing evaluation for occult blood in the stool. Photo of transverse colon shown. Dx? - ANSWER- Tubular adenoma 38yo M with 1-week hx of watery, itchy eyes and a runny nose. Physical shows inflamed nasal mucosa. No congestion in lower lung. Pharmacotherapy? - ANSWER- Loratadine agglutination? - A...

BI 127 Lab GRCC Exam 2 (labs 11-14) Questions and Answers 100% Pass Which staining technique differentiates bacteria based on cell wall composition? Gram staining Which type of bacteria appears purple after Gram staining? Gram-positive Which type of bacteria appears pink after Gram staining? Gram-negative Which structure helps bacteria move in a liquid environment? Flagella Which type of media is used to grow fastidious bacteria? Enriched media 2 Which method is used t...

Enzyme lab: Practice IA Catalase + concentration

In Clinical Laboratory Science Bacteriology Questions and Answers 100% Pass What is the primary function of the Gram stain in bacteriology? To differentiate bacterial species based on cell wall composition To identify the presence of bacterial spores To assess the motility of bacteria To detect the presence of viral infections Which of the following bacteria is known for causing tuberculosis? Streptococcus pneumoniae Mycobacterium tuberculosis Clostridium botulinum Escherichia ...

How do you perform a oxidase test - pick up colony with wooden stick -place on paper and add reagent Positive: purple color - means cytochrome oxidase enzyme is present Is this a positive or negative oxidase result Negative: no color change -lack enzyme Is this a positive or negative oxidase test result How to do a catalase test - pick colony up with wooden stick - place on slide and add one drop of 3% hydrogen peroxide Why don't you pick up blood agar from catalase RVC contains ...

Microbiology Lab - Exam 2 Questions and Answers 100% Pass What is the purpose of the aseptic technique during inoculation? To prevent contamination of the sample and maintain pure cultures. What is the function of the autoclave in a microbiology lab? To sterilize equipment and media using high pressure and steam. What is the color of Escherichia coli colonies on MacConkey agar? Pink, indicating lactose fermentation. What is the morphology of Vibrio bacteria? Comma-shaped. W...

Bacteriology Biochemical Tests Questions and Answers 100% Pass What does a positive catalase test indicate? The presence of catalase enzyme, often found in Staphylococcus species What is the purpose of the coagulase test in bacteriology? To differentiate between Staphylococcus aureus (positive) and other Staphylococcus species (negative) How is a positive oxidase test result interpreted? The presence of cytochrome c oxidase enzyme, typically found in Pseudomonas species What doe...

Microbiology Lab Practical 1 Latest Version Graded A+ What is the purpose of using immersion oil with a 100x objective lens? To reduce light refraction and improve resolution. What is the correct way to sterilize an inoculating loop before use? Heat it in the flame of a Bunsen burner until it glows red. What is the main purpose of a simple stain? To visualize the shape and arrangement of bacteria. What is the purpose of a negative stain? To observe the morphology and size of b...