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- TSA plates of microorganisms grown at 30°C or 37°C In words, describe the differences you see for each organism (E. coli M.,luteus ,S. marcescens and S. saprophyticus) grown at 30°C or 37°C (ie, amount of growth, color, etcCompare the flexibility of the peptide backbone for the oxidised and reduced forms of the a-conotoxin. How do these differ and how important are the disulfide bonds for maintaining the a-conotoxin structure? give clear answer with explanation dont copy from chegg17) The peptidoglycan layers are anchored to the cell membrane by: a) tetrapeptide chain b) dipeptide molecule c) teichoic acid d) lipoteichoic acid e) c & d18) The peptidoglycan region in Gram +Ve bacteria is strengthened with ___ cross bridges of: a) Lipopolysaccahride b) Archaeol c) Hopanoids d) Polypeptides e) FtsZ19) The fluid or region present between the inner membrane and the outer membrane of some bacteria is called: a) periplasm b) ectoplasm c) circumplasm d) lophoplasm e) amphiplasm
- INSTRUCTION: Answer the question properly Do not copy in Google, plagiarize checker will be used. QUESTION: Give specific examples of the ff.: (5 each) a.) gram (+) cocci, b.) gram (-) cocci, c.) gram (+) bacilli, d.) gram (-) bacilli, e.) gram (-) curved rod, f.) gram (-) coccobacilli.Purpose Solve the identity of an unknown bacterial specimen by creating a dichotomous key and using the staining, culturing and biochemical identification procedures you have learned about during the semester. Possible Organisms Alcaligenes faecalis Enterobacter aerogenes Enterococcus faecalis Escherichia coli Proteus vulgaris Pseudomonas aeruginosa Salmonella arizoniae Staphylococcus aureus Staphylococcus epidermidis Staphylococcus saprophyticus Streptococcusbovis Streptococcus pyogenes You must write up your OWN dichotomous key for all the possible unknown organisms listed on above. Writing this key requires you use the same type of reasoning used in the Dichotomous key lab. The first step of the key will be the Gram Stain. Subsequent steps will include biochemical tests only. Please help me with this question. Thank you so much !Each Escherichia coli cell weighs 5ng. How many cells are present in a colony that weighs 1mg?
- 1) would you describe the contents of the soil-inoculated broth as being a “pure culture”? Why or why not? 2) How did the uninoculated broth differ in appearance from the broths inoculated with E. Coli and M. Luteus? And then how could you tell if a supposedly sterile, uninoculated broth was contaminated? Please explain in detail and highlight the important parts cuz I am confused and need help! Thankswitj the following imformation create figures and explain the resultsDescribe the shape and color of the following species of bacteria after Acid-Fast staining: E. coli S. aureus M. luteus P. aeruginosa M. tuberculosis
- 47. All the following characteristics can describe bacterial colony’s shape and form except: a) Colony margins b) Form c) surface characteristics d) presence or absence 0f an outer membrane in the bacteria 48. A box shaped bacterial arrangement made of 8 spherical looking bacteria is called: a) Staphylobacillus b) Sarcina c) Octococcus d) Diplotetrad 49.A certain medium has the following composition:Glucose 15 gYeast extract 5 gPeptone 5 gKH2PO4 2 gDistilled water 1,000 mla. Tell what chemical category this medium belongs to, and explainwhy this is true.b. How could you convert Staphylococcus medium intoa nonsynthetic medium?Use the following diagram to explain how Pasteur’s swan-necked flasks prevent contamination of sterile broth the flasks.Describe what happens to the sterile broth (a) after it has beenallowed to cool as in (b). What happens to the broth after theflask has been tipped enough to let the broth come in contactwith the dust and microorganisms and is tipped back as in (c)?