684 Answered Questions for the topic microbiology
Microbiology
10/29/20
Many organisms in the Enterobacteriaceae family are part of the human gut flora. How does gut flora gain entry into the body? Give at least three exampl
Microbiology
10/29/20
describe signs and symptoms of diseases that are caused by Salmonella, Shigella, and Escherichia coli
Microbiology
10/26/20
The following results are obtained from a broth dilution test for microbial susceptibility of a bacterial infection in a patient: Antibiotic Growth in culture + drug Transfer to drug-free
Antibiotic Growth in culture + drug Transfer to drug-free culture concentration50 μg/ml No growth No growth25 μg/ml No growth , Growth 12.5 μg/ml No growth , Growth6.25 μg/ml Growth , Growth What...
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Microbiology Pharmacology
10/22/20
Empiric treatment for Infection in Soft Tissue
Noah is a 60 years old male with diabetes, hypertension, epilepsy, and HIV. He presents to the emergency department for the second time after failing his oral antibiotic treatment with Cephalexin....
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10/21/20
Oxidative Phosphorylation?
Can someone explain the following items in the context of oxidative phosphorylation, along with explaining the process?
Mitochondrial matrix
Intermembrane space
Inner mitochondrial membrane
NADH...
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10/17/20
How to answer this question?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant...
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Microbiology Biology
10/14/20
Reverse transcriptase
Hi!I have one question!Is the enzyme reverse transcriptase that retroviruses need found in the retrovirus particle or inside our own cells (host cell)??
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10/14/20
Creating Dichotomous Keys
I need help making a dichotomous key for archaea and protists. It can be for specific species or for groups/subgroups of the kingdoms.
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10/14/20
Dichotomous Key
I need help making a dichotomous key for: archaea and protists. It can be for specific species or for groups/subgroups of the kingdoms.
Can someone tell me how I should answer this question?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant...
more
Can someone help me please?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant...
more
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Can someone help me please?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant...
more
What is the reason for bacterial death in the cell culture? Will bacteria spontaneously die in human infection?
Discussing microbiology lab on bacterial growth curve
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Microbiology
10/02/20
How growth curve will change if the number of bacteria in the lag phase will be change from 16 to 32cells?
discussing stages of bacterial growth curve.
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Microbiology
10/01/20
Which of the following antimicrobial agents makes channels and gram-negative cellular membranes, thus damaging their integrity?
A. PolymyxinB. BacitracinC. DaptomycinD. CephalosporinE. StreptomycinWhich of the following statements regarding resistance to antimicrobial agents is false?a. Resistance can occur after mutation...
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09/28/20
Determine number of Bacteria
Determine the number of bacteria within a 1 kilogram package of ground beef in order to provide a quantitative risk assessment and quality measure before release to public market.Technical Data: A...
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09/28/20
Antibiotic sensitivity table
Hi!Is the table in Bio Libres page on Kirby Bauer for all types of bacteria when it is not specified like Ampicillin (Staph)?Link will be posted in comment below.Thanks!
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Microbiology
09/28/20
Microbio help please!
What is the total surface area of a 50 mL Streptococcus pneumoniae culture at 5x108 cells mL-1 in which the cells have a radius of 0.5 mm? Calculate you answer in cm2.
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09/25/20
Kirby Bauer Test
Hi!What are some error sources for the Kirby Bauer test for antibiotic sensitivity?Thanks!
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09/25/20
Antibiotic Resistance Reference
Hi!Can someone please give me a link to a table where I can find reference value for when the inhibition zone length is counted as resistant or susceptible for E.coli and Tetracycline 10 mikrograms?
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09/24/20
E. coli antibiotic
Hi!I wonder if Streptomycin is effective for E.coli infections?Some sources say yes, others say that it enhances its growth.Which one is true?Thanks!
09/24/20
Inhibition zone
Hi!I did a Kirby-Bauer lab seeing antibiotic resistance in E.coli. I have measured the inhibition zones, but I am not sure how to confirm if it is large enough to be considered not resistant or...
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Microbiology Biology
09/24/20
Ampicillin effect
Hi! I wonder of Ampicillin kills bacteria and if I am right:It kills it by preventing the cell wall to be built up and when the bacteria cell will divide, there is no cell wall to hold it together...
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