Catalase Study guides, Class notes & Summaries

A; Animals serve as a reservoir of infection" is the correct answer because Shigella only infects humans while Salmonella is found in many animals. Both have diarrhea as the major symptom. Endotoxin is produced by all gram negative bacteria and exotoxin is only produced by Shigella. A major difference between Salmonella enterica and Shigella infections is that only in salmonellosis can: A. animals serve as a reservoir of infection B. diarrhea become the major symptom C. endotoxin play a ...

Why did the catalase function level off when different hydrogen peroxide concentrations were tested? correct answer: At some point, all the catalase in solution was catalyzing reactions, so even if the hydrogen peroxide concentration was increased, the rate of the reaction could not increase any more. How much slower would hydrogen peroxide likely be decomposed if catalase was not available in cells? correct answer: 1,000,000 times At which temperatures did catalase function somewhat, bu...

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...

Sputum reveals lancet-shaped, gram positive cocci arranged in pairs. What is this most likely? A. Strep. pyogenes B. Staph epidermidis C. Strep. pneumoniae D. Klebsiella pneumoniae - correct answer S. Pneumoniae -Lancet shaped diplococci structure -Catalase negative -Alpha hemolytic -Meningitis, sinusitis, otitis media and pneumonia What diseases are associated with Strep. pyogenes? - correct answer (RAN TIPS) Rheumatic Fever Acute glomerulonephritis Necrotizing fasciit...

MICROM 443 Question and answers rated A+ 2024/2025Genus Staphylococcus - Cells tend to form clusters, may be single, in pairs, or short chains - common skin microbiota - Generally hardy and not nutritionally fastidious - Facultative anaerobes (w/ O2 --> respire; without O2 --> ferment - Catalase positive Genus Streptococcus - Cells tend to form chains - Common oral microbiota - Nutritionally fastidious - Aerotolerent anaerobes/ obligate fermentors, some are caphophiles - Cat...

True or False. The presence of cytochrome C is often associated with aerobic bacteria. True Correct! False Question 2 2.5 / 2.5 pts Your Answer: Gonorrhea Gonorrhea Question 3 2.5 / 2.5 pts Using the catalase test, a Staphylococcus sample would be: Gram (+), Catalase (+) Correct! Gram (+), Catalase (-) Gram (-), Catalase (-) Gram (-) Catalase (+) Question 4 2.5 / 2.5 pts True or False. The catalase test is a qualitative and differential assay. True Correct! False

What neurotransmitter stimulates release of epinephrine from adrenal medulla? - Answer- acetylcholine What is a metabolite if epinephrine that suggests epi-secreting carcinoma? What is another assoc symptom? - Answer- metanephrine; assoc with HBP What does acetazolamide (carbonic anhydrase ib) treat? - Answer- glaucoma, epilepsy, altitude sickness, congestive heart failure can cause dehydration Sickle cell anemia is due to... - Answer- pt mutation of Glu -> val What is a major ne...

MIP 302 Final Question and answers rated A+ 2023/2024 Purpose of Blood Agar - correct answer See if bacteria has hemolysis abilities Purpose of Catalase Test - correct answer Determine if bacteria produces catalase Purpose of Indole Test - correct answer See if bacteria produces tryptophanase Medium for Indole test - correct answer Tryptone broth Purpose of Klinglers Iron Agar - correct answer See ability of bacteria to ferment glucose and/or lactose and the ability to prod

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...

CMI correct answers immune system response that is important for fighting off intracellular parasites (FIPs and OIPs), because once they are inside of the cells antibodies are not helpful mycobacterium characteristics correct answers -have a lot of hydrophobic myconic fatty acids in their cell wall, so they do not gram stain well -gram positive like bacilli -obligate aerobes -slow growers -colonies take 4-6 weeks to appear -produce dry, flat colonies with irregular filamentous edge that ...