Clostridium botulinum is a strict anaerobe; that is, it is killed by the molecular oxygen (O2) present in air. Humans can die of botulism from eating foods in which C. botulism is growing. How does this bacterium survive on plants picked for human consumption? Why are home-canned foods most often the source of botulism?

Pseudomonas aeruginosa might contribute to denitrification under which conditions? In an anaerobic environment with no carbon/energy source In an anaerobic environment with a carbon/energy source In an aerobic environment with a carbon/energy source In an aerobic environment with no carbon/energy source

Your microorganism produce black color in peptone iron agar grown at 37 degrees Celcius overnight.Which enzyme would you predict the this microorganism has ? a)tryotophanase b)gelatinase c)desulfhydrase d)urease e)Cytochrome C

Given what is known about humans, why is it unlikely that a thermophile or a psychrophile would be a human pathogen?

While it is true that not all coliforms are pathogenic under normal conditions, please name two situations that can occur due to infection by pathogenic strains.

Different strains of Streptococcus pyogenes have different virulence factors, giving these microbes much versatility. Virulence factors include which of the following? Choose one or more: A.A capsule that, when thick, will help the organism avoid phagocytosis by macrophages B.A cell wall containing lipoteichoic acid, thought to facilitate adherence to pharyngeal epithelial cells C.Enzymes that lyse blood cells (streptolysins) D.The production of several endotoxins called streptococcal pyogenic endotoxins (SPEs)

Where/ How did the researchers find the bacterium, which they named Ideonella sakaiensis 201-F6? Apart from applications in recycling plastics and/or fermentation of PET products, why is this considered a remarkable finding?

Which organism can produce pyocyanin? O N. meningitidis O S. pyogenes O P. aeruginosa S. aureus Question 5 Which organism listed below can undergo bleb

Bacterium F had the lab results below. What can you tell me about the carbon food sources it ferments and the kind of end products it produces in anaerobic respiration? View attached photo.

1. Where is staphylococcus aureus commonly found? 2. What staphylococcus aureus  its significance in medical microbiology?  3. Is staphylococcus aureus an obligate aerobe or facultative anaerobes?  4. can staphylococcus aureus  catabolism glucose or lactose? Does it produce strong acid products such as lactic or acetic acid?  5. Does staphylococcus aureus produce by product that are converted to alcohols?